“背衬”的英语

“背衬”的拼音为：bèi chèn...

在有较大开口的情形中,还需选购背衬材料.A backing material is optionaland only needed for large openings.酚醛背衬阀座: 不可拆解, 抗拉伸,抗撞击.现场可更换.Phenolic Backed Seat: Non - collapsible, stretch resistant, blow out proof, field replaceable.剥离背衬膜.Peel of...