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- grouping to prevent coal Dust 注浆防尘
- The coal dust is the main mold sand additive to prevent penetration/burn-in and improve the surface fineness. 煤粉是防止粘砂和改善表面光洁度的主要型砂加入物。
- OBJECTIVE:To prevent and treat contact dermatitis for contacting chemical substance harmful to workers health such as coal dust,tar,anthrone and naphthol,etc. 目的：为防治化工生产由于接触焦油、沥青、蒽酮、萘酚等化学物质引起的全身瘙痒、皮炎而研制的有效制剂。
- Dust the repair to prevent adhesion to outer cover. 清整修补处以防与外胎粘连。
- So it takes a lot of effovt for preventing coal spontaneous combustion in per year in coal mine methods are grout nitrogen flooding and even pressure fire-extinguished to prevent coal spontaneous combustion. 为此,煤矿每年都要花很大气力防止煤炭自燃,采取了灌浆、氮、压灭火等阻止煤炭自燃的措施。
- The authors have analysed the causes of coal and gas outburst accidents happened in the past years and put forward some countermeasures to prevent coal and gas outburst. 分析了坪湖煤矿历年来发生的煤与瓦斯突出事故的原因,有利于今后坪湖矿采取针对性的措施防治煤与瓦斯突出。
- The composition, function and application situation of four equipment positioning interlocking to prevent coal mixing in coal blending system is desc ribed in this paper. 介绍了配煤四车定位连锁防混煤系统的组成、功能及应用情况。
- What can we do to prevent the disease spreading? 我们能做什么来防止这种疾病蔓延呢？
- Dust the repair to prevent adhesionto outer cover. 清整修补处以防与外胎粘连。
- This device uses such as microcontroller devices, high integration, small size, responsive and reliable security features, such as apply to the need to prevent coal mine gas poisoning incident place. 此装置采用单片机等器件,具有集成度高、体积小、反应灵敏、安全可靠等特点,适用于煤矿等需防止瓦斯中毒事故发生的场所。
- The authorities took measures to prevent tax fraud. 当局已采取措施防止偷税漏税。
- Does prison do anything to prevent crime? 采取关押方法对制止犯罪有作用吗？
- Stir the sauce to prevent it lumping. 把沙司搅拌一下以免结块。
- His face and hands were covered with coal dust. 他的脸和双手沾满了一层煤灰。
- We should take steps to prevent war. 我们应当采取措施制止战争。
- Seal (up) the window to prevent draughts. 把窗户封起来以防风。
- His face and hands were covered with grime from the coal dust. 他的脸和双手沾满了一层煤灰。
- I was powerless to prevent the accident. 我无力阻止事故的发生。
- A block of compressed coal dust, charcoal, or sawdust and wood chips, used for fuel and kindling. 煤砖，炭砖把煤灰，木炭或锯木灰和木片压缩制成的砖块状物，用作燃料和点火
- We have banked up the river to prevent flooding. 我们已沿河筑堤以防河水泛滥。
