For ordinary steel tubes and, according to practical experience, the following formula can be used.
根据实践经验，对普通材质的钢管可采用如下公式。
According to practical experience of years, introduce hot leveling technology and solutions of the problems. It is practical guidance.
作者根据多年的实践经验，介绍了热风整平工艺技术及问题的处理方法，具有一定的实际指导意义。
The writer discusses the advantage and disadvantage of non-linear editing system in TV news program production according to practical experience.
阐述了非线性编辑系统在电视新闻节目(包括新闻专题节目、以新闻消息为主的日播节目等)制作中具有的优势和存在的劣势。
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