The single tooth cutting course of a PDC drilling bit is studied. The research is of great significance for improving PDC drilling bit design.

为了改进PD C钻头设计，在全尺寸试验的基础上，对PD C钻头单齿切削过程进行了试验研究。

youdao

It has certain significance to analysis bit wearing and predict wellsite logging.

这对录井现场钻头使用情况的分析及预报具有一定的指导意义。

youdao

Can you talk a little bit about the significance of your laborious process and how you maintain momentum and focus?

你可以解释一下你在劳动过程中的意义与及你如何去维持你的焦点和动力吗？

youdao

Now there is a bit of an argument about the significance of the financial institution debt, about how much of it is genuinely a risk or potentially deadening weight for the British economy.

BBC: US ahead of UK on road to reducing debts

Since this is a topic of some significance (Putin, as you might have heard, has just a bit of authority and influence in Russia) I thought that I would go to Levada and check in on the latest figures.

FORBES: After Nosediving In 2011 Vladimir Putin's Approval Rating is (Mostly) Holding Steady