core-barrel bit 硬砂岩钻头
barrel-type core bit 筒式取心钻头
barrel-type e core bit 筒式取心钻头
64-bit Multi-Mode Barrel Shifter 位多模式桶形移位器
bit barrel 筒式牙轮钻头
bit Multi-Mode Barrel Shifter 位多模式桶形移位器
The phrase "peak oil" is one that has been tossed around quite a bit lately, which comes at no surprise considering oil is hovering around $100 a barrel.
“石油峰值”这个词最近已经造成了相当大的震动，对于每桶石油达到100美元左右的价格已不再感到惊讶。
The price of a barrel of Brent crude, which had nudged $120, slipped back a bit this week.
一桶布伦特原油的价格之前已逼近120美元，这周略有回落。
This allows the bit to drill around a central cylinder of rock, which is taken in through the bit and into the core barrel.
这样允许钻头围绕岩石的中心圆柱体钻进，并通过钻头进入取芯桶。
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