您要查找的是不是：
- 气密外壳（ex h)hermetically sealed enclosure(Ex h)
- 气密外壳gas-tight casing
- 水密外壳watertight case
- 气密箱Gas-tight box
- 气密检查孔airtight inspecting hole
- 气密式机器airtight machine
- 气密钢板壳airtight steel shell
- 气密性能air tight performance
- 气密材料air-tightness
- 气密机箱airtight case
- 气密检测airtightness detection
- 气密层胶inner liner compound
- 高气密性High air-sealed
- 气密检查设备airtight inspecting equipment
- 利用曲轴扭振相位特性诊断机车柴油机气缸气密性的新方法A new diagnosis method of individual cylinder gas leakage by phase analysis of crankshaft torsional vibration
- 列车气密性air tightness
- 气密性实验air-sealed test
- 气密性检查airtight test
- 外窗气密性external window air tightness
- 气密性封装hermetic package
