pin-to-box pipe
阳螺纹-阳螺纹管子
boxpin connection
阴螺纹-阳螺纹连接
male and female cross
阳螺纹-阴螺纹十字接头
pepe bend with male and female thread
一头带阳螺纹一头带阴螺纹的弯头
box up and pin down
上部阴螺纹-下部阳螺纹接头
pin-to-pin reducer
两头阳螺纹的大小头
double pin sucker rod
两头阳螺纹的抽油杆
external and internal thread grinding machine
外螺纹及内螺纹磨床
Screwed 1;Screwed 2;Screwed 3;Screwed 4
螺纹接头 1;螺纹接头 2;螺纹接头 3;螺纹接头 4
Screwed Joint 1;Screwed Joint 2;Screwed Joint 3
螺纹接头 1;螺纹接头 2;螺纹接头 3
Tubing thread is available for API tubing threads and TM threads.
油管螺纹可采用API油管螺纹，或TM螺纹。
double-screw bolt
螺柱，双头螺纹螺栓
Tapping screws thread
GB/T5280-1985自攻螺钉用螺纹
threaded type track bolt nut chuck
螺纹式轨道螺母夹头
coarse threading attachment
大螺距螺纹切削装置
remove the thread (of screws).
去掉（螺丝钉的）螺纹。
The threads of the screw work hard.
这螺丝的螺纹太涩了。
Apply pipe dope sparingly on pipe threads, never on valve threads.
在管道螺纹上涂敷螺纹油，但是不要在阀门螺纹上涂螺纹油。