钻进

These factors,which include slurry s preparation,circulation,depuration and so on,would influence drilling speed,bore quality,exertion of pile shaft resistance and base resistance .

泥浆制备、循环、净化等因素的好坏直接影响到钻进速度和成孔质量、桩侧摩阻力及桩端阻力的发挥。

Diamond drill bit, alloy drill bit and steel roller shrill b it and so on are available for drilling according to different geological structures.

根据地质结构的不同，可选用金刚石、合金及钢粒等钻头进行钻进。

The technique of composite plating of nickel／diamond in ultrasonic field was researched and ultrasound-assisted electroplating technique for diamond bit manufacture was established.

研究了超声波作用下的钞金刚石复合电镀工艺，确定了超声波电镀金刚石钻头的制造工艺流程，并根据确定的工艺试制了Φ75.5／49绳索取心钻头进行野外钻进试验。

E. g. The dog followed the fox's tracks into the woods.

那只狗循着狐狸的脚印钻进了树林。

Making trajectory of borehole as far as possible to achieve ideal condition an preventing the phenomenon of dogleg.

可在钻进过程中起到修整井壁的作用，使井眼轨迹尽量达到理想状态，防止出现狗腿现象。

I wonder if you realize that, you dogmatist.

那东西钻进了我的脑子，为了把它打发掉我只好写了出来。

He hitchhiked to Dover and,towards evening,went into a boat to find somewhere to sleep.

他搭便车到了多佛，天快黑时钻进了一条船，想找个地方睡觉。

He hitchhike d to Dover and, towards evening, went into a boat to find somewhere to sleep.

他搭便车到了多佛，天快黑时钻进了一条船，想找个地方睡觉。

It is very important for improving drilling rate, reducing drilling cost and safety drilling to carry out drill stem failure analysis and prevention.

开展油田钻柱失效分析与预防对提高钻井速度、降低钻井成本及井下安全钻进具有重要意义。

When it is drilling, Drill stem's service life is reduced seriously, because of the flections distortion and the wear and tear with casing-pipe wall.

在钻进时，钻柱由于弯曲变形与套管壁产生磨损，严重地降低其使用寿命。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。