三线白底平开关
three-wire white base flat switch
三线胶底平开关
three-wire rubber base flat switch
三线接地电阻测试法
three-wire ground resistance test method
三线建设
third line construction
the third-line construction
Third-line construction
三线检验螺纹法
three-wire thread inspection
三线鸡鱼
Parapristipoma trilineatum