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- expanding shell bolt 胀壳式锚杆
- Now appears a sort of plastic expansion shell bolt,which has strong expansion anchor-hold. 为了解决这一问题,出现了一种具有强胀锚力的塑料胀壳式锚杆。
- Another possibility is that the expanding shells of old supernovas have sculpted the unusual space cavern. 另一个可能性是年老的超新星正扩张的外壳已经形成了不同寻常的太空巨洞。
- Confirmation that black hole jets may create expanding shells has come recently from the discovery of shells surrounding Cygnus X-1. 黑洞喷流或许产生了不断膨胀的壳层，这一点最近得到了证实，因为天鹅座X-1周围已经发现了壳层。
- Test result shows that it can improve the bracing ability w ith less material.The shell bolting and shotcrete support is rationally structur ed and can be easily constructed.Lab test is com... 该结构具有一定的整体可缩性,能承受强大变形地压及采动荷载,达到用较少材料提高喷层支撑能力与让压的目标。
- The test of the shell bolting and shotcrete trestle used in the soft rock tunnels under high stress was introduced and the result shows that it can improve the bracing ability with less material. 在介绍网壳锚喷结构支护技术特点的基础上,阐述了其支护机理,并简述了网壳喷层支架试验结果,达到用较少材料提高喷层支撑能力与抗压的目标,证明网壳锚喷结构是一种结构合理、工艺简单、能承受高应力及采动荷载的新型支架。
- He locked the door and pressed the bolt home. 他锁上房门，并插好插销。
- The company is eager to expand into new markets. 那家公司急欲开辟新的市场。
- The expanding economy enriched the peasants. 不断发展的经济使农民们富裕起来。
- The bolt slotted smoothly into place. 插销很容易就插上了。
- Remember to bolt all the doors and windows. 别忘将所有门窗闩住。
- Keep down of you'll be hit by shell fragments. 别起来，否则你会被弹片击中的。
- I rammed the bolt back across the door. 我把门拴上。
- The snail retreated into its shell. 蜗牛缩进壳里去了。
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- Spectrum Analysis of the Binary Systems with Expanding Shell Due to Stellar Wind 有星风或膨胀气壳的双星系统光谱测定
- The bolt sheared (off) and the wheel came off. 螺栓折了，轮子脱了出来。
- semi-rigid shell bolting structure 半刚性网壳锚喷支护
- Our automobile industry is expanding. 我们的汽车工业在发展。
- shell bolting and shotcrete support 网壳锚喷
