the average liquid-drop diameter ( sauter diameter) in liquid-liquid turbulence system and residence time distribution ( rtd) of fluids in solid-liquid mixing system were determined in five geometrically similar nitration reactors installed double coil under different conditions.

the results of test for 08b double-strand roller chain indicate that the best preload is about 2/ 3q ( q is the ultimate tensile load of the tested chain) and it improves the fatigue performance and length accuracy uniformity obviously.

对08B双排链的试验结果表明，经（2/3）Q（Q为链条极限拉伸载荷）预拉后的链条、链长精度均匀性明显改善；

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yet when it increases to 6 times, the retaining and protecting effect of the structure is closely to that of the sustaining pile on the top.

排距增大到6d时双排桩支护效果接近于顶部支撑桩。

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the heat transfer enhancement increases and then decreases with the increase of the distance between rows, and is highest when the distance between rows is10d.

双排气膜孔出流对换热的增强效果随孔排距的增加先增大后减小，在孔排距为10D时最大。

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in order to reduce the blindness and complexity of designing heat exchanger fins, the air flow and heat transfer process on the surface of double/ cross-row corrugated fin were simulated by the software of fluent.

为了减少换热器翅片设计中的盲目性和复杂性，利用FLUENT软件模拟了发生在双排/叉排波纹翅片表面的空气流动和传热过程。

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an indirect enzyme-linked immunosorbent assay ( elisa) for detection of monoclonal antibody ( mcab) against μ chain of chicken igm was established by the plastic plate for elisa coated with purified chicken igm and igg.

以纯化的IgM和IgG包被酶标反应板，进行双排筛选，建立了检测抗鸡IgMμ链单克隆抗体的间接ELISA法。

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structural steel hanging scaffold is 45 m high, double rowed, and chooses 14# double t iron as hanging stand.

钢铁结构材料的高性能化型钢悬挑外脚手架高45m，双排，采用14工字钢做悬挑支架。

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mechanical parameters of soil mass, design parameters of double-row supporting piles, cfg piles and bored piles are analyzed entirely. and the more sensitive parameters are found out.

系统分析了土体力学参数、双排桩设计参数、CFG群桩设计参数和钻孔灌注桩设计参数对基坑变形的敏感性，得到了较敏感参数。

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objective to probe into the optimal screening parameters for early lung cancer screening with low-dose radiation thin-section dual slices helical ct and to investigate the diagnostic and application value of the protocol.

目的探讨低剂量双排探测器螺旋CT薄层扫描筛查早期肺癌的最佳扫描参数及其应用价值。

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objective to evaluate the diagnostic value of ct perfusion imaging for detection of hyperacute cerebral infarction.

目的探讨双排螺旋CT脑灌注成像技术在超早期脑梗死诊断中的意义。

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purpose: to evaluate the clinical applications of the asymmetric scan mode using dual-slice spiral ct.

目的：评价双排螺旋CT肺部非对称扫描方式的临床应用价值。

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double led digital display, and has a fault display and alarm functions;

双排LED数字显示，并具有故障显示功能及报警功能；

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dual-slice spiral ct virtual cystoscopy: the clinical applications in bladder cancer

双排螺旋CT仿真内窥镜在膀胱癌的应用

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selection on double detector row helical ct scans mode of the head

双排螺旋CT头颅扫描方式选择探讨

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a new mode for calculation of portal double row anti-sliding piles

门架式双排抗滑桩设计计算新模式

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difference between coal & petroleum coal

煤炭和石油的差别

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users of proprietary networks of maritime, transportation, petroleum, coal, water conservancy and public security;

海洋、交通、石油、电力、煤炭、水利、公安等专网用户；

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in china because of the lack of petroleum, coal-chemical industry has been paid more and more attention.

由于石油紧缺，中国能源安全问题日益得到关注，煤化工再次成为投资热点。

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of carbon, hydrogen, sulphur and nitrogen or the residue from distillation of petroleum , coal tar or rosin.

天然产生的沥青是含有碳、氢、硫和氮的矿产化合物。人造沥青是蒸溜石油，煤焦油或松脂后的余下渣滓。

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with the depletion of petroleum, coal, natural gas and other fossil fuels, the global energy crisis is increasing fairly rapidly.

石油、煤炭、天然气等不可再生资源日益枯竭，导致世界能源危机日趋严峻。

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this standard reflects the resources consumption (including electricity, petroleum, coal) of each product in all the industries.

这个标准反射资源消耗量（包括电、石油，煤炭）各个产品在所有产业。

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