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for subject
Engineering geology
containing
喷 管
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Chinese
English
双层喷射式岩芯管
double-tube swivel-type face ejection core barrel
双管旋喷法
jumbo special pattern
喷发管道
eruption canal
喷射软管
jet hose
喷管
lance pipe
放
喷管
discharge pipe
旋
喷管
jet grouting battery
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