... drill-core 钻孔岩芯 drill core sample hole 取心井 drill COre geochemical exploration 岩心化探 ...
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drill core 钻机岩心 ; 钻孔岩心 ; [地质] 岩心 ; 在勘探
drill core store [矿业] 岩心库
test drill core 试样岩心
drill COre geochemical exploration 岩心化探
Structure of Drill Core 岩心沉积构造
diamond core drill 金刚石钻岩机 ; 金刚石打孔钻 ; 钻机
drill core log 岩心录井
It is practically proved that frequency distribution of drill-core recovery is partial.
实践证明，岩心钻探取心率的频率分布是偏态的。
The riser's inner hollow core (a pipe within a pipe) is reserved for the drill string.
立管内部核心是空心的(管中管)，留给钻柱使用。
A drill assembly is typically a few tens of metres long and can only hold a core of ice of the same length.
一个钻取机通常有数十米长而且只能获取一个与之等长的冰芯。
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