双语例句原声例句
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Reducing 2,4-D density is beneficial to callus reproduction.
降低2，4-D浓度有利于愈伤组织的增殖。
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When logging or general overhaul for long time, mud density must BE raised to E. C. D. for stable of hole.
在电测或长时间停钻检修设备时，将泥浆密度提高到循环时的当量泥浆密度范围。
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The results of the theoretical model calculation and practical application have showed the little error and good effect to inverse 3-D density interface.
理论模型试算与实际应用结果表明，应用边界元法反演三维密度界面误差小、效果好。
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a perfectly spherical shell dr at some distance, thickness, d r, dr we talk about it as 4 pi r squared d r, so we just multiply that by the probability density.
在某个地方的完美球型壳层,厚度，我们把它叫做4πr平方，我们仅仅是把它,乘以概率密度。
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