safety cotter pin保险开尾销
safety-pin tag安全针形鱼签
safety lit pin安全开尾销
safety-pin ring带保险销的拉环
safety locking pin安全锁销;安全栓
Safety Shear Pin Assembly安全剪切销大会
safety split pin安全开尾销
safety-pin doll别针娃娃
safety shear pin保险切断销
This article takes the important equipment of Sendzimir ZR22BS-42 mill's main transmission system—safety pin and gear case's oblique tooth gear—as the research object, analyses its strength and load-bearing ability by using nonlinear finite element method.
本文以某硅钢片厂ZR22BS-42型森吉米尔轧机主传动系统中的重要设备——安全销和齿轮分配箱为主要研究对象，运用非线性有限单元法对其进行了强度计算及承载能力研究。
参考来源 - ZR轧机关键传动部件的非线性有限元分析N-COUNT（可数名词） A safety pin is a bent metal pin used for fastening things together. The point of the pin has a cover so that when the pin is closed it cannot hurt anyone. 安全别针
...trousers which were held together with safety pins.
…用几个安全别针别起来的裤子。