钻头

You might start your lunch with a salad with a favorite salad dressing or a fruit salad or fruit cup or that salad might be a main course -- there are some wonderfully filling and healthy main-course salads with chicken, ham, bacon bits, seasoned croutons and a world of other ingredients.

你也许一开始你午餐沙律与喜爱沙拉酱或水果沙拉或水果沙拉杯或者可能主菜--有些填补了极其健康主场同沙律鸡、火腿、培根钻头、老练croutons和世界其他成分。

Making the holes in the sail was accomplished using wood drill bits in sizes 3/8", 1/2" and 7/8. Then round, flat and triangular shaped files were used to square and shape the square ones.

使孔的船帆是完成了使用木材钻头尺寸为3 / 8 &， 1 / 2 &和7 / 8 ，然后轮，单位和三角形的档案被用来广场和形状的广场上。

This method has the shortages of large calculation work and low comprehensive function. According to the basic rock-crushing theory, a computation model and an evaluation method for rock-crushing efficiency based on the crushing work ratio were provided by analyzing the energy consumption of rock crushing with roller bit.

根据岩石破碎的基本理论，对牙轮钻头破碎岩石所消耗的能量进行分析，建立了岩石破碎比功的计算模型，并提出一种基于破碎比功的岩石破碎效率评价方法。

Combining the performance of the formation rock mechanics with the rock-breaking mechanism of the PDC bits, the PDC bits suitable for the combination driving drilling in the northeastern Sichuan were selected.

通过对地层岩石力学特性的研究，结合PDC钻头的破岩机理，筛选出了川东北地区适合于复合钻井的地层。

A rock-boring tool used in mining for sinking shafts.

有十字形钻头的岩石钻；用于采矿。

During the process of a second removal of ice blockage,a fire accident occurred due to the leakage of oil and gas from the sealed auger and the attritional fire caused by a blunt drill head,Two technicians were seriously injured and many p.

分析这次管线排堵钻孔意外失火事故发生的原因：一是钻孔人员对油气的危害认识不足，未及时给予清除；二是思想麻痹，未及时刃磨变钝的钻头；三是消防灭火措施不力。

In 1980's, Shanghai Electric Furnace Works have manufactured six heat treatment lines which are coproduced with four companies of America, Canada and Germany, and are used for treating petroleum drills,high strength fastening, gears, big bearing sleeves and Ni-covered coin blanks.

上海电炉厂在80年代先后同美国、加拿大、德国的四家电炉公司合作生产了六条分别供石油钻头、高强度紧固件、齿轮、大型轴承圈和镍包钢币坯等热处理用的生产线。

Drilling mud is pumped down the inside of the drill pipe, through jet nozzles in the bit, and into the "annulus".

钻井泥浆被泵入钻杆内部，从钻头的喷嘴流入环形空间。

DiffServ increases the number of definable priority levels by reallocating bits of an IP packet for priority marking .

的数量增加可定义优先级的再分配，由钻头的一个IP数据包的优先标记。

The geometric forms and surface roughness of drill resharpened can be guaranteed by high rigidity, accurate positioning and ratilnal structure of this grinder.

本机良好的刚性、精密的定位、合理的结构，使重磨钻头的几何角度、表面精糙度都得到了可靠的保证。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。