查询词典 block

Prepared by Tom Sheeran Drill string Drill bit The hoisting equipment consists of: a crown block, a traveling block, drilling line, and a drawworks to pull the drilling line up or down.

Prepared by Tom Sheeran 钻柱钻头起重设备由以下部分组成：天车，游动滑车，游动钢丝绳，和一个用来起降游动钢丝绳的绞车。

B Hoisting system: drawworks, crown block, travelling block, hook elevator link, wire rope, and its fixing clamping, plates and grips etc.

b 提升系统：绞车、天车、游动滑车、大钩吊环、钢丝绳及固定绳卡等。

Analysis is made on block effect to cutters of PDC bit with 3 factors: different top shape,cutter-distributing and wearing degree.By the interaction(radial range and altitude difference of each cutter) of three adjacent cutters,the cutter block is further analyzed with these factors,but wearing degree is simplified to be considered as the cutters vertical to the assembling plane.

中文摘要：对PDC钻头冠部形状及不同的布齿密度和切削齿在不同的磨损状态下对PDC钻头切削齿受力的影响进行了分析；用相邻的3个切削齿之间的关系（不同的切削齿与切削齿之间的径向距离和切削齿之间的高度差）来分析PDC钻头冠部形状和切削齿布齿密度对切削齿受力的影响，以及将切削齿的磨损状态简化成与切削齿在钻头上装配方向垂直的平面来分析切削齿磨损状态对切削齿受力的影响。

Key products include: cast iron plate, cast iron platform, the test platform, crossed platform, Maohan platform, fitter platform, table, Ping-foot, to me, V-type, V-iron, right-angle-foot, V-iron, foot bridge , Curved panels, machine damping Sizing Block, adjusted Sizing Block, partial-place, Jack, special wrench, gear Gear beat Tester; platform granite, marble slab, Ping-foot, V-iron, to me, Jiaochi, V-shaped blocks, such as platform support.

主要产品包括：铸铁平板、铸铁平台、检验平台、划线平台、铆焊平台、钳工平台、工作台、平尺、方箱、V型架、V 型铁、直角尺、V型铁、桥尺、弯板、机床减震垫铁、调整垫铁、偏摆仪、千斤顶、特种扳手、齿轮齿圈跳动检查仪；花岗石平台、大理石平板、平尺、V型铁、方箱、角尺、V型块、平台支架等。

The top end portions of the external block walls constitute an external flange portion of a top deck of the cylinder block.

该外缸座壁的顶端部分构成汽缸座的顶板的一个外凸缘部分。

Thus, the rigidity of the top deck of the cylinder block is improved, and the sealing between the cylinder block and a cylinder head via a head gasket is improved.

这样，汽缸座的顶板的刚性被提高，并且汽缸座和汽缸盖之间的密封通过一个汽缸盖垫被提高。

With comparisons to several cases of block double-bottom construction, and on basis of the analyses of block assembly influence factors, the multistage fuzzy comprehensive assessment for double-bottom assembly case is presented.

通过对几种双层底分段建造方案比较，在分析影响选择分段装配方案若干因素的基础上，提出了双层底分段装配方案的多级模糊评判方法。

The dowel pin holes that were used for roughing this block on a magnet are also used to position the block on the rails for finish machining.

该柱销孔是用于粗加工这个区块上的磁铁也可用来块的位置上轨完成machining。

The method divides block along the intersection edge of joint faces and neglects the vertical shear force between dividing-blocks i.e. takes horizontal normal force and shear force into account; as to an assumed sliding direction, by satisfying vertical force equilibrium of every dividing-block and whole force equilibrium in the sliding direction, the factor of stability can be solved.

基于此，提出分块极限平衡分析法，该方法沿非临空面交棱将块体进行分块，在忽略分块间的垂向剪力（即可考虑分块间的水平法向力和剪切力）前提下，通过满足各分块的垂向力平衡和滑动方向上的总体力平衡，求解特定滑动方向的稳定系数。

The key technique of the method is to make full use of the information from the present oil prospecting and exploitation database and to calculate the coordinates of the acmes of the block boundary according to reserves and block area and reserves with computer.

该方法解决了用求积仪等常规方法求取面积时所存在的精度偏低、操作繁琐、工作量大等缺点，用这种方法在面积确定过程中自动化程度高，具有方便、灵活、实用的特点。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷