Hose bit can be divided into cutter teeth and cone teeth, cone teeth for weathering of soft rock strata, and permafrost, cutter teeth used for drilling hard bedrock.
筒式钻头的切削具可分为截齿和牙轮,截齿筒状钻头用于风化软岩及永冻土地层钻进,牙轮筒式钻头用于硬质基岩钻进。
Or, another way of saying it is, I'm going to open up the fire hose a little bit today.
也就是说,今天我会把水龙头,稍微多拧开一点。
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