查询词典 block

If we are reading a slice of columns, we use the row-level column index to find where to start reading, and deserialize block-at-a-time (where "block" is the group of columns covered by a single index entry) so we can handle the "reversed" case without reading vast amounts into memory

如果读取的是列集合，那就要用行级列索引查找从读取的起始位置并且反序列化每个块（"块"就是单个索引所覆盖到的一组列），这样我们不需要大量占用内存就可以处理"逆向"情况。

This paper describes the components and structure of advanced signaling system: Automatic Train Control system, analyzes the function and classification of its three subsystems: ATS, ATP and ATO, with emphasis on currently widely adopted ATC system-Quasi-Moving-Block signaling system, which works on coded digit track circuit, and discusses the operating principles of coded digit track circuit and the features of train control of Quasi-Moving-Block signaling system.

本文详细讨论了应用于城市轨道交通的先进的信号系统——列车运行自动控制系统的组成和结构，对其三个子系统：列车自动监控系统ATS、列车自动保护系统ATP、列车自动运行系统ATO的功能和分类进行了详细分析和比较。

Firstly, the whole test set was partitioned to several length-fixed blocks. For non-0/1 data block it used dimidiation technique, and for 0/1 data block it used some mark-bits to represent the times of partitioning.

首先将整个测试集划分成若干定长块，对非全0/1块，使用折半的方法划分；对全0/1块，使用标记位来表示划分的次数。

SCSI disk commands addressed to RAID arrays, are actually using virtual block addresses in their logical block address fields.

也就是说发给RAID阵列的SCSI磁盘命令中，实际上是在逻辑块地址字段使用虚拟块地址。

Based on the study of the assembly of block copolymers in dispersion medium and at the interface of fiber reinforced polymer composites, the micellization in solution of block copolymers and the micelles size were in control.

研究了嵌段共聚物在分散介质及纤维增强聚合物复合材料界面的组装行为，掌握了共聚物胶束的形成条件及胶束尺寸的控制方法。

The translation table in a DMA controller is changed to point DMA transfers that target the first block to instead target the temporary block.

改变DMA控制器内的转换表以使目标为第一块的DMA传送改为目标为临时存储器块。

These images provided by the journal Science show the Cascajal block from Veracruz, Mexico, and a drawing of the block at right.

这些图象由《科学》杂志提供，展示了出自墨西哥韦拉克鲁斯的Cascajal（石头材质名，美洲的沙岩）石块，和一块精确的绘图。

At the same time, a computer aided ore drawing control system for the block caving of Chengchao Iron Mine is developed. This may promote the management level of block caving and finally increase economic benefit of the mine.

同时，开发了程潮铁矿矿块崩落法放矿计算机辅助管理系统，该系统可以提高矿块崩落法放矿的现代化管理水平，提高矿山企业的经济效益。

The head block is made from duralumin, and the back block is made from bronze. Heat-treated high strength chromium manganese steel bolts were used for binding the PZT elements.

为了获得高速和大推力，驱动头选用硬铝材料，后端盖选用黄铜，压紧螺栓选用镀铬高强度钢材料。

Before driving under the exciting force to be checked at both ends of the two vibrators fixed eccentric block, adjustable eccentric angle is the same as the block to check whether the fasteners completely secure fastening; inspection of electrical wiring and insulation is good .

开车前应根据激振力的要求检查两振动器两端固定偏心块、可调偏心块的夹角是否完全相同，检查紧固件是否完全紧固牢靠；检查电气接线及绝缘度是否良好。

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％。