Chinese translation: 带氟橡胶（FPM）填料的（备）选件/以氟橡胶（FPM）填实的（备）选项
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09:56 Nov 26, 2008
English to Chinese translations [PRO] Mechanics / Mech Engineering
English term or phrase:Option with FPM infill
全句：Stainless steel labyrinth seal (AISI 303) (Option with FPM infill)
讲的是电动机各个部分的技术规范。 这里的 option 是选件的意思？ FPM infill怎么理解？