单词	防水油毡
释义	防水油毡Tar felt
随便看	double rope grab double-rope grab double rope tramway double rotary engine double-rotor impact breaker double rotor induction motor double rotor-stator stepper double-rotor swing-hammer crusher double roving double roving spinning double row ball bearing double row ball journal bearing double row bearing double-row compressor double row radial engine double row roller bearing double row single direction thrust ball bearing double-row stage doublers double-rule double-ruled double ruled surface double ruled warped surface double ruled warp surface double-ruling