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- rock pressure indications 岩石压力迹象
- All gauge pressure indications should be equal, with no more than 25% leakage. 如果泄漏不超过25%25,所有的量表压力读数都应该是相等的。
- The pressure indication is then obtained. 压力指示是可以得到的。
- BOOST PUMP PRESSURE INDICATION CIRCUIT. 增压泵压力指示电路。
- The characters of deep mine are larger raw rock pressure,larger ore body plasticize,mine pressure severe appearance. 深矿井的特征是原岩压力大、矿体塑性大及矿山压力显现剧烈。
- The caving of thick and strong roof stratum,key stratum,causes tremendous rock pressure in mine. 采场上覆岩层中的厚硬岩层,即厚硬关键层,其冒落会造成剧烈的矿山压力显现。
- Accoording to the result on observation of rock pressure,adaptability of telescopiform bolt in soft rock road and reasonable structural parameter are analysed. 根据矿压观测结果分析了可拉伸锚杆对软岩巷道支护的适应性及其合理的结构参数。
- On the basis of the observation to rock pressure,the strata behavior regularity of 93305workface is summarized,and the reason is analyzed,rome reasonable advices is put foreward. 在矿压观测的基础上,总结了该工作面的矿压显现规律,并对原因进行分析,最后就工作面的开采提出合理建议。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area,dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据,论述了超薄基岩工作面顶板的风化变异特征。
- Based on measured rock pressure and experimental data under thick watered loose bed of Wanbei mining area, dimorphism and mutation characteristics of ultrathin bedrock working face roof are discussed. 摘要以皖北矿区厚含水松散层下超薄基岩开采工作面实测矿压资料与实验数据为依据,论述了超薄基岩工作面顶板的风化变异特征。
- Under composite roof inthe No.2 seamof Tunlan mine,bolt-rope strenthenningsupporttechnique is utilized to control roof ad decrease rock pressure,which has achieved good economic bene-fit. 介绍了屯兰矿在2号煤层复合顶板条件下,采用锚索补强支护技术,有效地控制了巷道顶板离层,减轻了矿山压力显现现象,取得了较好的经济效益。
- The relationship of roadway surrounding rock pressure and supporting performance is interacting and counteracting.Only coordination between them can make possible a better support. 巷道围岩压力与支护能力是一个相互作用与反作用的关系,两者之间必须协调才能取得较好支护效果。
- Hose Connection Gauge for Testing Water Supply Pressure in a Building. Includes High Pressure Indicator Hand. 软管连接仪表,用于测试建筑内的水供应压力,配置高压压力计指针。
- This article narrates the rock pressure measurement methods for working face under the shallow burial and the thick, fluid sands in detile,analyzes and gets the regulations of rock pressure phenomena. 本文叙述了厚流砂层下浅埋工作面的矿压观测方法,分析得出了其矿压显现规律;
- The genset is equipped with frequency, voltage, current, temperature,oil pressure indicators and voltage, current over-load protection devices. 机组带有频率、电压、电流、温度、油压指示和电压、电流过载保护装置。
- Ranges shall be selected such that the normal operating pressure indication is within 30-70% of full scale with a target of approximately 50%. 应选择量程以便在正常操作压力条件下指示以大约50%25的目标而落在满量程的30%25-70%25的范围内。
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年,长大后成了地质学家。
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。