固定(机械部件,如航空中)以防止其在振动中脱落
固定(机械部件,如航空中)以防止其在振动中脱落
To secure (a mechanical component, as in aviation) to keep it from becoming detached even under vibration.
固定击针,如在枪支中,以防止枪支走火
to secure a firing pin, as in guns, to keep the gun from firing
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