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jam nut
archit.	锁紧止动螺母
auto.	防松锁紧螺母; 锁紧止动，防松，保险，安全螺母
avia.	保险螺帽
compr.	止动螺母; 安全螺母; 保险螺母
mech.eng.	锁紧〔止动，防松，保险，安全〕螺母; 锁紧〔锁定，防松〕螺帽
met.	防松螺母; 锁紧螺母
nautic., tech.	锁紧螺母防松螺母
railw.	固定螺母
space	防松螺帽; 锁紧螺帽
telecom.	防松螺丝; 锁紧螺丝

jam nut: 3 phrases in 1 subject

Technology

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