查询词典 boring block

Through similar simulation test of block top-coal drawing, the influence of coal block size and block position in top coal on the recovery ratio and drawing manner is studied. It is found that the drawing manner has the different adaptation to the top coal which has different block distribution. The caving capacity is mainly decided by the block size. The top-coal which has layer difference of block with the same size has different recovery ratio. It is shown, that, to the given top-coal blocks, the recovery ratio of uniformly mixed blocks is maximal in the manner of drawing at interval of one support.

研究表明，顶煤块体大小是影响顶煤回收效果的主要因素，在顶煤块径一定的条件下，块体层位分布不同是造成顶煤回收率差异的主要原因，研究表明各级块度均匀混合时顶煤回收效果最好，块度从下向上增大分布次之，大块为中位顶煤时回收效果最差；各种放煤方式的适应性不同，各级块度均匀混合的顶煤适合用间隔放煤；块度从下向上增大适合用顺序放煤；大块在顶煤中位分布时，中硬煤以下适合用间隔放煤，硬煤应采用顺序放煤方式。

The method includes establishing one reverse mapping list comprising list items; reading the mapping data recorded in the data block state list item area to the list items during system initialization; checking reverse mapping list and finding the data block in Flash memory during reading some logic block; and writing the updated data into the empty data area of one new data block, writing the mapping data between the new logic block and the new data block into the state list item area and updating the mapping data of the corresponding list item in the reverse mapping list during writing some logic blcok.

包括：建立一个由表项组成的反向映射表，一个表项对应一个逻辑块；在系统初始化过程中，将数据块状态表项区中记录的映射信息，按逻辑块号与表项间的对应关系读取到各表项中；读取某逻辑块时，以其逻辑块号作为表项索引查找反向映射表，定位到表项，根据表项中记录的映射信息，在Flash存储器件中查找到数据块；写入某逻辑块时，将更新数据写入一新数据块的空白数据区中和将该逻辑块与新数据块间的映射信息写入状态表项区中，同时更新反向映射表相应表项的映射信息。

The treatments of rice straw-based blocks were as follow: Rice straw block Ⅰ was composed of 74.2% rice straw treated with chemicals, 20.4% concentrate mixture and 3.3% minerals premixture; Ten percent rice straw from rice straw block Ⅰ was equally substituted by corn silage or concentrate for rice straw block Ⅱ or Ⅲ; Additional 10% water was supplemented to rice straw block Ⅳ, based on the straw block Ⅰ, in order to decrease the rigidity of the straw block.

复合稻草块的调制：①稻草块Ⅰ由74.2%的稻草、20.4%混合精料等压块调制而成；②稻草块Ⅱ、Ⅲ是将稻草块Ⅰ中10%的稻草分别用青贮玉米、混合精料等量替代调制而成；③稻草块Ⅳ的组成与稻草块Ⅰ相同，仅在压块时额外添加10%的水分，以降低其硬度。

10 Rad/a, 2.15×10^(-9) rad/a, 1.45×10^(-9) rad/a, respectively. The activity of the Qaidam block, Ganqing block and Chuandian block is stronger than that of the stable South China block and Indian-China block. Every block rotates clockwise around the east of the Himalayan syntaxis.

柴达木地块、甘青地块、川滇地块活动性较强，而华南地块、印支地块活动性较弱，属于稳定地块；各块体围绕东喜马拉雅构造结呈顺时针旋转。

FYH KYH outside Japan with legislation Block Spherical Bearing Block, Square Block Round diamond ring-type slider Block Block stent Block.

日本 FYH KYH 外球面轴承带立座方形座菱形座圆形座滑块座环型座支架座。

Aiming at the limitations of the way to increase the static stiffness of the boring bar ,this paper adopts a novel thinking way that aggrandizes the dynamic stiffness of the boring bar to design a bar with a vibration absorption system in the boring bar .

针对一般方法增加深孔加工镗刀刀杆静刚度的局限性，采用了一种新颖的增加刀杆动刚度的思维方法，对内藏式减振刀杆进行了设计。

The T68 horizontal boring machine boring axis axial flees moves has boring lathe main axle revolution time the revolution transmission chain each coordination tolerance clearance.

T68卧式镗床镗轴轴向窜动产生于镗轴运转时的传动链各配合件的配合间隙。

This paper introduced the mechanism of vibration in the process of deep hole boring ,developed a dynamic modal of the damping boring bar,optimizing the parameters of the damping system,analyzed the transient dynamic and harmonic response of the damping boring bar.

介绍了深孔镗削加工过程中产生振颤的机理，建立了减振镗杆的动力学模型，在此基础上优化减振系统的参数，并且对减振镗杆进行瞬态动力学和谐响应分析，分析结果表明该减振系统具有良好的减振性能。

The boring bar was designed into a new structure consisting of two coaxial bars. As a result, the micro-boring bar can be made with relatively smaller outer diameter, which was suitable for boring smaller and deeper hole, even the measuring and compensating sensors have been incorporated.

但是，在镗削加工中就遇到了较大困难，因为镗杆的径向尺寸受到被镗孔尺寸的严格限制，用于误差在线检测的传感器和用于误差在线补偿驱动的传感器不能直接安装在镗杆内。

According to the quality and efficiency question existed in machining end surface inside and outside of big diameter hole in the big case part, the process of machining with a new auto feed boring head is proposed. The main parameters of the boring head are discussed in detail. The basis of theory and practice for design of the auto-feed boring head is provided through engineer testing.

针对大型箱体类零件上的大直径孔内外端面加工中存在的质量和效率问题，提出了利用自动进给式镗头进行加工的方案，对自动进给式镗头的主要参数进行了详尽的论述，并通过工艺试验，为自动进给式镗头的设计提供了理论和实践依据。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

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