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钢板弹簧主片 gāngbǎn tánhuáng zhǔpiàn
auto. main spring leaf; top leaf of spring
钢板弹簧主
tech. main leaf of spring; spring leaf
钢板弹簧主
auto. top spring leaf
钢板弹簧主片〔第一片〕 gāngbǎn tánhuáng zhǔpiàn
mech.eng. spring leaf