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自锁螺母 zìsuǒ luómǔ
auto. prevailing nut; stiff nut
avia. self locking nut
compr. caulking nut; selflocking nut
el.mach. locknut
space self-locking nut
tech. self-lock ing nut
wind. locking nut
自锁螺 母: 4 phrases in 2 subjects
Architecture1
Aviation3