An auto on line safety valve checking and adjustment system is developed to solve the problems of poor degree of accuracy and slow speedy that exists in the man made system.
针对现行人工在线校验安全阀存在的校验准确度差、速度慢等问题，研制了自动在线安全阀校验整定系统。
The Mississippi River system and the Great Lakes are connected only through the man-made Chicago Sanitary and Ship Canal, which leads from Lake Michigan to the Illinois River.
密西西比河流域与五大湖之间唯一的纽带是人工挖掘的芝加哥环境卫生和航行运河，它连接于密歇根湖与伊利诺斯河之间。
And not just man. The whole Earth was made from dust particles in orbit around the primitive sun, as were all the other solid objects in the solar system.
而且不仅仅人是尘土造的，包括地球在内的、整个太阳系的固体物质都是由环绕早期太阳的尘埃造的。
应用推荐