English translation: percentage change due to load
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Explanation: 负重变化率 - you can't say load variable ratio nor variable load ratio, just load ratio.
-------------------------------------------------- Note added at 6 hrs (2009-02-20 14:56:20 GMT) --------------------------------------------------
Please allow me to revise my answer...
percentage change of load
percentage change == 百分变化率;变化率
pls. check the formula for percentage change at http://en.wikipedia.org/wiki/Percent_change
老化性能变化率;percentage change in aging properties,物理性质,化学 ... - [ Translate this page ]老化性能变化率;percentage change in aging properties,物理性质,化学性质,结构式,英文名,溶点,沸点.
chemyq.com/xz/xz3/20851dvqqr.htm - 16k - Cached - Similar pages
-------------------------------------------------- Note added at 7 hrs (2009-02-20 15:40:22 GMT) --------------------------------------------------
more sample sentences...
台湾检验科技股份有限公司 - 繁 - [ 转为简体网页 - Translate this page ]抗拉强度变化率. －Percentage Change in Tensile Strength. －伸长率变化率. －Percentage Change in Elongation. －硬度变化率. － Change in Hardness ... www.tw.sgs.com/zh_tw/ind_test_item_list.pdf - Similar pages
-------------------------------------------------- Note added at 20 hrs (2009-02-21 04:49:20 GMT) --------------------------------------------------
If 变化率 rate of change accdg to Adsion Liu is correct, rate is expressed in distance over time, e.g. km/hr (KPH), meter per second, etc. (not suitable to the above formula)
-------------------------------------------------- Note added at 20 hrs (2009-02-21 04:59:21 GMT) --------------------------------------------------
台湾检验科技股份有限公司 use 变化率 only. Even though it should be 百分比变化率.
The only thing I wanna say is: this is not a formula, but a definition, comprised of the description and the explanation. That's just what a context means...
Ysun's reference seems handsome to me...I have only tried to describe more exactly this definition (the name I mean), though I insist that percentage should be avoided in the description, as we should naturally put a "percentage" into the explanation...
Keeping or not keeping the 百分比 in the Chinese text is not important, you should base it more on the formula by w.c it derived its computation. It is what it is. Percentage change computation is widely used, in this case, taking the height before loading (v1) subtracting it from the height after loading (V2) then dividing the difference by V1, the quotient is the Percentage change in load bearing capacity (负重变化率). This is not change rate, rate is expressed in distance over time. 用负重前所测高度与负重后所测高度的差值，除以负重前所测高度的百分比，既为负重变化率。 & the formula both cancel out the units and end up expressing the quotient in %.
You all make sense, Karcsy, however the definition in Chinese is 用负重前所测高度与负重后所测高度的差值，除以负重前所测高度的百分比, it's in fact about a percentage or ratio, the description of the definition should not only dwell at percentage, but alternatively ratio while keep the word "percentage" in the explanation. Thus:用负重前所测高度与负重后所测高度的差值，除以负重前所测高度的百分比，既为负重变化率=Take the difference (value) between the heights/altitudes measured before and after loading, and divide by the height measured before loading, we get a percentage, thus is the change rate of change due to/upon loading.
A percentage change is a way to express a change in a variable. It represents the relative change between the old value and the new one.
Variance 方差 - Wikipedia, the free encyclopediaIn probability theory and statistics, the variance of a random variable, probability distribution, or sample is one measure of statistical dispersion, ...
en.wikipedia.org/wiki/Variance - 95k - Cached - Similar pages
karcsy: I know you wouldn't mind my comment!!!
1 hr
-> Thank you, but could you please argue your comment to convince, Karcsy? We are here only to help, not to act up Karcsy:-) I commented on your answer with NEUTRAL, only mean to discuss... [Edit / Delete]
I don't comment only for comment, but to help and make everything clearer with my reasonable argument. If this has made you uncomfortable, I would apologize
here: 负重变化率=因负重而产/发生的变化比率
thus: 负重变化率=variance ratio/change rate upon load(ing), or due to load(ing) for the second part of expression; or briefer, upon-load variance ratio, etc.
-------------------------------------------------- Note added at 6 hrs (2009-02-20 15:08:11 GMT) --------------------------------------------------
percentage change sounds much nicer:-)
Thanks for karcsy's information, but I insist that, variance/change ratio/rate matches better this context... more accurate, height/distance (between xxx and xxx) variance/change ration
-------------------------------------------------- Note added at 13 hrs (2009-02-20 21:40:20 GMT) --------------------------------------------------
用负重前所测高度与负重后所测高度的差值，除以负重前所测高度的百分比, it's in fact about a percentage or ratio, the description of the definition should not only dwell at percentage, but alternatively ratio while keep the word "percentage" in the explanation. Thus:用负重前所测高度与负重后所测高度的差值，除以负重前所测高度的百分比，既为负重变化率=Take the difference (value) between the heights/altitudes measured before and after loading, and divide by the height measured before loading, we get a percentage, thus is the change rate of change due to/upon loading.
See also following for reference:
变化率
rate of change [数]
Adsion Canada Local time: 04:00 Native speaker of: Chinese PRO pts in category: 24
Explanation: 负重变化率 - you can't say load variable ratio nor variable load ratio, just load ratio.
-------------------------------------------------- Note added at 6 hrs (2009-02-20 14:56:20 GMT) --------------------------------------------------
Please allow me to revise my answer...
percentage change of load
percentage change == 百分变化率;变化率
pls. check the formula for percentage change at http://en.wikipedia.org/wiki/Percent_change
老化性能变化率;percentage change in aging properties,物理性质,化学 ... - [ Translate this page ]老化性能变化率;percentage change in aging properties,物理性质,化学性质,结构式,英文名,溶点,沸点.
chemyq.com/xz/xz3/20851dvqqr.htm - 16k - Cached - Similar pages
-------------------------------------------------- Note added at 7 hrs (2009-02-20 15:40:22 GMT) --------------------------------------------------
more sample sentences...
台湾检验科技股份有限公司 - 繁 - [ 转为简体网页 - Translate this page ]抗拉强度变化率. －Percentage Change in Tensile Strength. －伸长率变化率. －Percentage Change in Elongation. －硬度变化率. － Change in Hardness ... www.tw.sgs.com/zh_tw/ind_test_item_list.pdf - Similar pages
-------------------------------------------------- Note added at 20 hrs (2009-02-21 04:49:20 GMT) --------------------------------------------------
If 变化率 rate of change accdg to Adsion Liu is correct, rate is expressed in distance over time, e.g. km/hr (KPH), meter per second, etc. (not suitable to the above formula)
-------------------------------------------------- Note added at 20 hrs (2009-02-21 04:59:21 GMT) --------------------------------------------------
台湾检验科技股份有限公司 use 变化率 only. Even though it should be 百分比变化率.
Reference: "Percentage change under load" should be fine.
Reference information: Deformation Under Load
Measure of the ability of rigid plastics to withstand permanent deformation and the ability of nonrigid plastics to return to original shape after deformation. Standard test methods for determining both types of deformation under load are given in ASTM D-621. For rigid plastics, deformation (which can be flow or flow and shrinkage) is re-ported as % change in height of specimen after 24 hours under a specified load. For nonrigid plastics, results are reported as % change in height after 3 hours under load and Recovery in the 1-1/2 hour period following removal of the load. Recovery is % increase in height calculated on basis of original height.