短語(yǔ)詞組

短語(yǔ)

• hydraulic jet coal mining 射流採(cǎi)煤
• hydraulic coal mining technology 水力採(cǎi)煤工藝
• hydraulic mining coal slurry 水採(cǎi)煤泥
• hydraulic mining fine coal 水採(cǎi)煤粉
• backfilling coal mining hydraulic support 充填採(cǎi)煤液壓支架
返回 hydraulic coal mining