开发了一种合适的扰流件，通过实验分析了强化传热前后的传热和流阻变化。
A suitable type of disturbing device is developed and further experimental comparison is given.
信 件 的 流 程读下列段落了解信的流程。
Read the paragraphs below to learn how the mail is delivered.
一流的质量，稳定供货。以“严格每一件产品的质量，珍惜每一次服务的机会”为经营理念！
First-class quality, stable supply. To "strict each product quality, every service opportunities" business philosophy.
一流的质量，稳定供货。以“严格每一件产品的质量，珍惜每一次服务的机会”为经营理念！
First-class quality, stable supply. To "strict each product quality, every service opportunities" business philosophy.
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