study about mixed tube bundle heat transfer and fluid resistance performance of shell-and-tube heat exchanger

1、

research on the mixed tube bundle heat exchanger of the longitudinal double rough tubes with smooth tubes

纵向流双面粗糙管混合管束换热器研究

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2、

overall planning, phased implementation and due attention to emphasis and actual effect;

统筹规划、分步实施、突出重点、注重实效；

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3、

project participants shall specify only one start date for the crediting period, even in cases of phased implementation.

项目参与者只能为计入期规定一个开始日期，即使项目为分阶段实施的。

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4、

for telecommunications restructuring process, it gives the phased implementation of the business development strategy.

针对电信重组的进程，给出了分阶段实施的业务发展战略；

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5、

it would take a miracle to turn the scales for us now.

只有神迹才会使天平倾向我们一边。

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6、

a first detector for detecting a predetermined component in the first measurement sample prepared by the sample preparing section;

第一检测器，用于检测所述制样器制备的测定试样中的一定成份；

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7、

a sample analyzer comprising: a sample preparing section for preparing first and second measurement sample including reagent and sample;

本发明提供一种标本分析仪，包括：制样器，用于制备或再次制备含标本和试剂的测定试样；

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8、

a second detector for detecting the predetermined component in the second measurement sample prepared by the sample preparing section;

第二检测器，用于检测所述制样器再次制备的测定试样中的所述一定成份；

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9、

standard specification for mineral-fiber blanket thermal insulation for light frame construction and manufactured housing

木框架和轻型建筑物用矿质纤维毡绝热材料

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10、

the importance function of culture learning and communication in foreign language learning

文化学习和交流在外语学习中的重要作用

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11、

basic level government of judicatory executive officer they at basic level exercise importance function.

基层政府的司法干事他们在基层发挥了重要作用。

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12、

n-heptyl methyl ketone;

甲基正庚基甲酮；

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13、

heptyl methyl ketone;

甲基庚基甲酮；

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14、

amyl methyl ketone;

甲基戊基甲酮；

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15、

specification for butanone (ethyl methyl ketone) for industrial use

工业用丁酮（乙基甲基酮）规范

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16、

study on catalytic behaviors of polymer catalyst in synthesis of p-chloride diphenyl methyl ketone

高分子催化剂在对氯二苯甲酮合成中的作用

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17、

theoretical study on the enantioselective reduction of phenyl methyl ketone

苯甲酮不对称还原反应的理论研究

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18、

supramolecular inclusion compound of - cyclodextrin with benzyl methyl ketone

环糊精与苄基甲基酮超分子包合物

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19、

after dissolution, aryl methyl ketone (1. 0 eq) was added over a period of 10 min.

在溶解后，在10分钟的时间内加入芳基甲基甲酮（1.0当量）。

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20、

the invention provides a simple and economic preparation method of a methyl ketone compound containing heterocycles.

本发明提供了一种简便、经济的含杂环的甲基酮类化合物的制备方法。

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