Suitable for coring in hard to very hard formations .

适合于硬极硬地层取芯。

Are you coring in your butt ?

你在涂你的屁股？

Later surgeries involved " coring " several regions in the frontal cortex with hollow needles - literally sucking out parts of the brain to sever neural connections .

后来的手术则是用空心针头“掏空”额叶的几个区域从字面理解就是通过吸走大脑的某部分以达到切断神经连结的目的。

So every so often a sample is obtained with a coring bit .

因此时常要用取芯钻头取样。

The geologist needs to know what rocks the drill has reached , so every so often a sample is obtained with a coring bit .

地质学家需要知道钻头已到达什么样的岩层，因此时常要用芯钻头取样。