valve-seat bore

• 气门座孔

valve-seat bore的用法和样例：

例句

1. Use care not to score the housing bore when prying out seals and washer.
   当拆下油封和垫圈时，要特别小心切勿划伤机座孔。
2. Alignment needle roller bearings should have an interference fit in the housing bore.
   对中滚针轴承的轴承座孔应过盈配合。