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| Chinese | English |
| 进气门座喉口形导气孔 | throat vane |
| 孔口流出，测量孔板系数 | orifice coefficient |
| 孔口之间连肋 | port divider |
| 孔口之间连肋 | port barbridge |
| 二冲程发动机孔口扫气式发动机 | port-scavenged engine |
| 二冲程发动机/转子发动机孔口间隔壁 | port barbridge |
| 带开口销孔头螺栓 | cotter bolt |
| 开口销孔 | split-pin hole |
| 开口销孔 | cotter-pin hole |
| 螺杆带开口销孔 | with split pin hole on shank |
| 颈状孔口喷管 | neck |