Control of leakage in piping LPG supply is expounded. The good engineering quality is the essential condition, and strict management is the fundamental pledge for leakage control.
阐述了管道液化石油气供应泄漏的控制。指出良好的工程质量是控制泄漏的必要条件，严格的管理是控制泄漏的根本保证。
Thermal behavior during laser welding was simulated with CAE(Computer Aided Engineering), and it was demonstrated that simulation technique was essential to earn high quality of welding.
运用CAE（计算机辅助工程分析），对激光焊接法的热变化过程进行了仿真，结果证明仿真技术是取得高质量焊接的根本…
Intensifying practical teaching of course, "Water Pollution Control", is essential for teaching quality of environmental engineering speciality.
加强“水污染控制工程”课程的实践性教学是保障环境工程专业教学质量的重要措施。
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