对发生管体刺穿、外壁腐蚀的Φ127mm×9.19mm IEU S-135钻杆进行了失效分析。
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Lily: Yeah, but now it appears a new way: using the cremains to make a diamond.
是的,但是现在出现一种新方式:用骨灰造钻石。
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Synthesis and Evaluation of Amphoteric Copolymer HTB as a Drilling Fluid Additive
钻井液用两性离子共聚物HTB的合成与其性能研究
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Drilling began to rescue the 33 workers trapped in a collapsed mine in Chile.
智利矿难救援人员开钻救生井开始营救33名被困矿工.
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Pull force, jar placement, collar dimensions and depth of fish are related to the impact force.
上提拉力 、 上击器安放位置 、 钻杆尺寸以及落鱼深度等都影响到震击力大小的确定.
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The hole was lined with a steel tube to prevent the walls from falling in.
用一根钢管给钻孔加衬,以防井壁坍塌.
词典精选例句
测试结果为钻头受力的合理分配及结构优化设计提供了依据。
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教学内容分层次,提高自学能力,独立钻研教材的能力;
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It makes them easier targets for borers and shows if the insects are nearby.
这使得它们更容易成为钻木虫的目标,以此来判断虫灾是否临近.
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