查询词典 drill bit

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

这句话里面有个so every so often，就是不时的意思，为什么？还不是因为太深了，地理学家没有把握？

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经到达什么样的岩层，因此时常要用取芯钻头取样。

The geologist needs toknow what rocks the drill has reached, so every so often a sampleis obtained with a coring bit.

地质学家需要知道钻头已以到达什么样的岩层，因此时常要用芯钻头取样。

The geologist needs to know that 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经到达什么样的岩层，因此时常要用取芯钻头取样。

Geologist so every so often 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经到达什么样的岩层，因此时常要用取芯钻头取样。

And we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.

我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。

In this paper,trial-manufacture and application of sandwich structure on diamond drill bit were studied.

采用冷压成型夹层和加灰热压烧结法制备了一种夹层结构金刚石钻头。

The company produces various specifications of diamond drill bit, at home and abroad, must occupy the market share, in geological exploration, foundation grouting in areas such as hydropower, can be widely used and was very well received.

本公司生产的各种规格的金刚石钻头，在国内外占有一定的市场份额，在地质勘探、水电站基础灌浆等领域，都能得到广泛应用，并获一致好评。

Is located in the city, the northwest region of considerable size artificial diamond, CBN wheel, diamond drill bit products and professional manufacturing enterprises.

西安航都超硬磨具有限公司坐落在西安飞机城内，是西北地区颇具规模的人造金刚石、立方氮化硼砂轮，金刚石钻头及其制品的专业生产制造企业。

High quality, the fair price is our characteristic, through ours endeavor, provides the high performance-to-price ratio unceasingly for the customer the diamond drill bit product, enables the customer to reduce the cost, the promotion quality.

优质、平价是我们的特点，通过我们的努力，不断为客户提供高性价比的水钻产品，让客户能降低成本，提升品质。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。