短語(yǔ)詞組短語(yǔ)source Bailers 點(diǎn)源式貝勒琯bailers tube 採(cǎi)樣器Single check valve bailers 止逆閥式Point -source bailers 或點(diǎn)源式貝勒琯low circulation ratio steam bailers 低循環(huán)倍率鍋爐 返回 bailer