unstable formation was often met in drilling engineering.

prime costs = direct materials plus direct labor costs.

主要成本=直接材料成本+直接劳动成本？。

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a, i'm a little surprised to hear you say that. our domain is precious, and we have to consider the prime costs.

听这样说我有些吃惊，域名是珍贵的稀有产品，而且我们的域名都必须考虑成本。

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to avoid the sharp angles around the inner wall, should punch to sunken arc.

为了避免内壁筛孔周边的锐角，冲孔时应冲成下凹的圆弧形。

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the point to remember here is that each time you eat a meal, your metabolism increases.

有一点你应该知道是每吃一次饭, 你的新陈代谢就会增加.

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the point to remember is that surrogate pairs represent 32-bit'single characters.

关键是要记住,代理项对表示32位单字符.

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a last point to remember is to complain privately.

最后一点,记着要报怨也要私下讲.

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in fact, situations like these happen time after time in our daily lives.

其实在我们生活中 、 工作中也常常出现这样的画面.

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hcsht high carbon steel heat treated

热处理过的高碳钢

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application on the identification of wood drying process based on ga-bp

GA-BP网络在木材干燥过程建模中的应用

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study on the identification of wood drying based on time delay neural networks

基于时延神经网络的木材干燥模型辨识的研究

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identification of wood drying based on dynamical recurrent neural networks

基于动态递归神经网络的木材干燥模型辨识

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quantitative analysis of hydrogen sulphide

硫化氢的定量分析

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loss of head at orifice

孔口压头损失

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loss of head is minimized by the balanced disc and its aerofoil design.

通过平衡阀瓣及其“翼型”结构，将水头损失（或位差损失）降到最小程度。

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by the qsim system, the qualitative relationship in the sales-force management was explained. the appropriate result was got by simulation.

利用QSIM系统约定的语言描述了营销人员管理中的定性关系，并模拟得出了符合现实情况的结果。

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quality index of a channel

信道质量指数

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never lose an opportunity of seeing anything that is beautiful;

不要失去任何一个欣赏美丽的机会；

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lose an opportunity to benefit from sth or enjoy oneself

失去获得利益或获得乐趣的机会

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never lose an opportunity to bring sunshine into the life of another.

绝不要错过能让为别人的生命带来阳光的机会。

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never lose an opportunity of seeing anything beautiful, for beauty is god's handwriting.

美是上帝的手迹，千万不要错过欣赏的机会。

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