body pore

• 体孔

body pore的用法和样例：

例句

1. Frequent temperature fluctuations expose the valve to excessive stresses which cause surface cracks in the body bores of cast steel valves.
   频繁的温度波动使阀门承受着过度的压力，这种压力容易造成铸钢阀门阀体孔内部表面裂缝。