1) Cone piston of pentahedron
五面梯形椎体活塞
2) trapezoid piston ring
梯形活塞环
1.
The systematic error analysis of synthetically measuring the angle & width of trapezoid piston rings is carried out, and testing results of the accuracy and reliability of this measuring instrument are presented.
对梯形活塞环梯形角度及基圆高综合测量方法进行了系统的误差分析 ,并给出了仪器精度及可靠性指标的测试结
3) stepped piston
阶梯形活塞
4) five ring piston
五环活塞
5) plane circle piston
圆形平面活塞
6) rectangular section ring
矩形断面活塞环
补充资料：五椎
五椎 五椎 人体部位名。指第五胸椎。《素问·刺热篇》：“五椎下间主肝热。”
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