单词	obsigns
释义	obsigns 🌏服从
随便看	Gas tightness test of control air reservoir gas tight piston ring gas-tight piston ring gas-tight ring gastight sampling gas tight seal gas-tight seal gas-tight sealed cell gas-tight seam gas tight section gas-tight section gas-tight sewing machine gas tight shell gas-tight shell gas-tight shielded enclosure gas tight silo gas-tight silo gas tight sleeve gas-tight sleeve gastight slide fastener gastight syringe gas tight syringe gas-tight syringe gastight terminal gas-tight terminal