2) drillpipe thread
钻杆螺纹
1.
Development of drillpipe thread defect detection apparatus;
钻杆螺纹缺陷检测装置的研制
3) worm with traight generatrix
直纹蜗杆
4) thread rod
螺纹杆
1.
The software of the calibration instrument is designed based on the LabVIEW,and its hardware is the thread rod bed.
介绍一种能精确可靠的标定差动电感式位移传感器的校准装置,该装置软件部分基于LabVIEW设计,硬件为螺纹杆校准台。
6) screw
[英][skru:] [美][skru]
螺纹吊杆
补充资料：UR-9双螺杆式空气压缩机
UR-9双螺杆式空气压缩机
I甲之一9双螺杆式空气压缩机翻戳
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条