Combined with an engineering example,the heat flow rate of buried W-tube heat exchanger inside foundation pile is measured,and its heat transfer performance is higher than that of conventional buried single and double U-tube heat exchanger.
结合工程实例,对采用W形地埋管的桩基地埋管换热器的热流量进行了测试,其传热性能高于常规单、双U形地埋管换热器。
CHARACTERIZATION OF Doa IN DROSOPHILA MELANOGASTER;
果蝇中w~a的调控基因Doa的发现及其功能特征研究
In the framework of WTO, EC(Export Credit), ECG(Export Credit Guarantees) and ECI(Export Credit Insurance) play important roles in the national economy and international trade ,especially in the international trade of agriculture products.
W TO框架内,出口信贷、出口信贷担保及出口信用保险对国民经济与国际贸易,尤其是农产品国际贸易具有重要的意义和作用。
The article believes that the moral essence of the WTO is economic globalization and the unite and harmony of all countries’s benefit.
本文认为W TO的道德本质在于经济的全球化与各个国家利益的统一与协调。