Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.

He had always wanted to go caving .

他过去一直想探索洞穴。

The calculation on working resistances of supports has been one of key research questions sublevel caving.

支架工作阻力计算是综放开采研究的主要问题之一.

According to CPM buy, CPM enough to be, no matter how long caving, unambiguous.

按CPM购买, CPM够 了才算, 不管放多长时间, 毫不含糊.

Politically, however, they cannot afford to be seen as caving in to foreign pressure.

不过, 在政治上, 他们承担不起被视为屈从外国压力的代价.

The horizontal section top coal caving in steep seam is different from the gently inclined seam.

急斜煤层水平分段放顶煤开采与缓斜煤层不同,工作面沿煤层厚度的水平线布置,长度短.

Some residents are concerned about their roofs caving in.

一些担心他们的房顶有塌陷的危险.

The formation is unstable and the wall caving are severe.

地层不稳定,井壁垮塌严重.

Carbopol 934 P gel is better for cavitary mucosal dru g delivery.

卡波姆934P凝胶剂更适合于腔道给药.

Pulse rate ( frequency ) is optimized in ultrasonic area, generates cavitated action in liquid accordingly.

脉动速率 ( 频率 ) 优选在超声区域内, 借此在液体中出现空化作用.

Cavitation water tunnel is one of experimental facilities studied cavitation phenomenon.

空化水洞是研究空化现象的实验设备之一.

Areas of necrosis and cavitation may occur within the tumor.

肿瘤内可以有坏死和成腔区.

This is the basis of the phenomenon called cavitation.

这就是所谓汽蚀现象的根据.

There is no cavitation damage and issues such as irrigation water.

不存在汽蚀破坏及灌引水等问题.

The supersonic characteristic of hydraulic turbine cavitation was studied in this paper.

本文分析了水轮机空化噪声的谱特性.

Extremely high velocities should be avoided due to possible cavitation.

应该避免应用在可能出现空穴现象的流速异常高速的场合.

Cavitation problem for thermohyperelastic materials and the effect of temperature are studied.

研究热超弹性材料中的空穴生成问题,讨论了温度对空穴生成的影响.

Because so far we do not know how cavitation mechanism occurred.

其原因在于,到目前为止对空化机理尚未研究得很清楚.

If the intersection point falls in the shaded area, cavitation can occur.

如果交点落在阴影区域, 则可能产生空穴.

Operation of valves continually in the cavitation zone should be avoided.

应该避免在空穴区域内持续运行阀门.

Presented a data acquisition card for hydraulic turbine cavitation noise testing.

介绍水轮机空化噪声测试系统的采集卡设计.