- 重点词汇
- 相关例句
Last month, a costly fire swept around Lake Tahoe, on the border of Nevada and California.
上个月, 一场损失巨大的火灾席卷了内华达和加州边境的泰和湖区.
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A mechanical model for well bore stability is established based upon mechanical analysis.
从力学分析入手,建立了井壁稳定问题的力学模型.
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By comparing with normal well bore, the economic efficiency of slim hole drilling was evaluated.
通过与常规井眼对比, 评价了小眼井钻井技术经济效益.
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油藏温度是井筒径向距离的函数,温度沿径向距离近似地按指数规律衰减.
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The nano tribological friction coefficient of boron carbide increases with the normal load rising.
碳化硼材料纳米摩擦因数随载荷的增加而显著增加.
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The research set up a base for further preparation and application of boron nitride.
本研究为进一步制备h-BN 粉体材料及其应用奠定了基础.
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首先介绍了聚晶立方氯化硼 ( PCBN ) 刀具的优异性能及其应用领域.
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