lot test meaning in Chinese
抽样试验
Examples
- Because the kinds , structure , storage and stratification of coal are different , it is difficult to analyze the effect factor on coal cutting power . based on a lot tests , the change rule of cutting parameter with cutting power is discussed , it is an important basis for designing , researching and selecting mining equipment , prcessing and technical reform
由于煤炭的种类、结构、赋存和层理的不同，给分析影响煤炭切削力因素带来了困难，在大量实验的基础上，讨论了切削力随切削参数的变化规律，为设计、研究、选择采掘设备、开采工艺、技术改造提供了重要依据。 - After completing the static and dynamic experiments on the5 electro - hydraulic component & system test unit , the author made further experiment research in the close loop system of hydraulic elevator , and get satisfying testing results . to sum up , the author build a set of theories and formulary for the design of integrated valve , change the traditional methods for the structure design of hydraulic elevator valves by the tools of pro / e , carry out a lot tests of the integrated valve on the special test platform
纵观全文，作者对针对液压电梯专用集成阀建立了一套比较完整的设计计算的理论依据；采用三维造型软件对集成阀进行实体建模，改变了液压电梯专用集成阀的传统结构设计方法，使集成阀的结构设计达到了更好的效果；利用专门的电液元件测试平台和液压电梯台架对集成阀进行了比较全面的实验，拓展了新元件的实验研究手段。 - The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside . we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit , and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing , and compare the effect of heat - exchange for different type flake , and compare the effect of heat resistance for different stretch of copper tube and flake . then we get many useful results from those different comparing
蒸发器与冷凝器统称为换热器，换热器是空调器与外界进行能量交换窗口，利用传热学原理对换热器的效率进行分析，通过大量的试验比较不同的蒸发器，冷凝器设计方案的优劣；比较冷凝器使用不同片型对换热效果的影响；比较铜管与翅片的不同胀紧对热阻的影响，通过比较得出很多有用的结论。 - Abstract : because the kinds , structure , storage and stratification of coal are different , it is difficult to analyze the effect factor on coal cutting power . based on a lot tests , the change rule of cutting parameter with cutting power is discussed , it is an important basis for designing , researching and selecting mining equipment , prcessing and technical reform
文摘:由于煤炭的种类、结构、赋存和层理的不同，给分析影响煤炭切削力因素带来了困难，在大量实验的基础上，讨论了切削力随切削参数的变化规律，为设计、研究、选择采掘设备、开采工艺、技术改造提供了重要依据。