Terms containing thread form

Subject	English	Chinese
oil	casing buttress thread form	套管梯形螺纹
seal.	helical thread form	螺旋状螺纹
tech.	locking thread form	防松螺纹样式
tech.	normal thread form	标准螺纹形状
tech.	screw-thread form	螺纹扣形
tech.	square-thread form	方螺纹样
tech.	standard screw thread form	标准螺纹样式
plast.	thread form	螺纹断面形状
tech.	thread form	螺纹牙形
tech.	thread form character	扣型代号
tech.	tubing thread form	油管扣型