短語(yǔ)詞組短語(yǔ)seal capacity of fault 斷層封閉性seal surface of flange 法蘭密封面SEAL KIT OF GEARBOX 密封seal ability of a 封閉性的seal type of fault 斷層封閉類型laser seal welding of kovar 可伐合金激光焊接seal airtight of driving shaft 動(dòng)軸密封seal materials of root canal 根管封閉劑seal type of nitrogen injection 封閉式注氮 返回 seal of