查询词典 drill

The results showed that the wear-resistant belt in drill joint was actually an isolation belt, which could protect the drill joint and sleeve from serious abrasion, and the optimization and improvement of its performance was the technical key to preventing sleeve from serious abrasion.

结果表明，钻杆接头耐磨带实质上是一个隔离带，用以保护钻杆接头和套管免遭强烈磨损，接头耐磨带性能的优化与改善是防止套管强烈磨损的关键技术措施。

Fire drill Stop everything; stand up and head for the door quickly, but without running or pushing; do not cover your ears; do not make any side trips; the classroom "fire chief" takes the fire drill packet and leads the line outside; the second person in line holds the classroom door for the rest of the class; the third person in line holds the outside door only for our class, then becomes the last person in line; wait patiently, calmly, and quietly in line outside until we are allowed to go back to what we were doing.

消防演习-停止一切，站起来走向门口很快，但不运行或推动，不包括你的耳朵，不以任何一方出游，课堂&消防队长&把火警演习，领导包线外，排在第二位的人认为对全班的教室门口，在符合第三人，只在我们的类外面的大门，然后就成为了行的最后一个人，耐心等待，冷静，并悄悄地在门外，直到我们被允许回到我们在做些什么。

In well- drill ing project, corrosion of drill steel and pipeline is ubiquitous phenomena.

油田钻具和管道系统腐蚀是油田工程中普遍存在的问题。

The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel.

此厚煤层钻2000为不锈钢结构，且刺和钻支架的一级内支架所属的活塞杆也是不锈钢的。

The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel.

这种厚煤层钻2000为不锈钢结构，而且属于刺和钻的一级内部支柱的圆柱形架杆也是不锈钢的。

The fatigue life of the newly developed drill rod is also predicted according to the S-N curve of drill steel and its theoretical loading spectrum.

同时，结合材料的S-N曲线和钎杆的理论载荷谱，运用电算程序，预估了新型结构钎杆的抗疲劳寿命。

The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel.

这种厚煤层钻孔机2000是不锈钢结构，钻头第一内部腿架的活塞杆和钻孔机支架都是不锈钢的。

In view of the improper matching of the strength-toughness for domestic petroleum drill pipe sub,the influence of the chemical compositions and metallurgical quality of 37CrMoE steel used for drill pipe sub on its mechanical properties,as well as the effect of the metallurgical quality on the hardenability,were analyzed.

针对国产石油钻杆接头存在强韧性配合不良的问题，试验研究了钻杆接头用37CrMoE钢的化学成分和冶金质量对其力学性能的影响，以及冶金质量对淬透性的影响。

Drill Collars - The drill collars are thick-walled heavy steel tubulars used to apply weight to the bit.

钻铤：钻铤是厚壁重钢管，用于给钻头施加钻压。

Emperor Qianlong then looked at this strange scene, the letter Yin to the mouth:"Beyond the Great Wall is like a golden yellow nail land" scholar Ji Xiaolan immediately correct answer:"Beijing is like silver in the 100 drill tower drill days."

当年乾隆望着这奇特的景象，信口吟到：&塞外黄花恰似金钉钉地&大学士纪晓岚立即答对：&京中百塔犹如银钻钻天&。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。