primary pipe meaning in English

敞开形缩孔
初次缩孔

The analysis of electricity consumption about regulating primary pipe network of a typical district heating system
集中一次网供暖系统优化调节的电耗分析
This the production thread application plc carries on procedure control , and realizes to crowd out machine owner ' s electrical machinery and synchronization towing the mechanical and electrical machine is transferred fast ( ly ) , and the installation has the good man - machine interface , and all technology parameters all can be set up and show by way of touching the screen , and producing to consult the menu , the order name was formerly fixed in the input , and whole production line just can be according to primary pipe specifications and speed production fixing every time ; cutting the function voluntarily fixed long ( ly ) cuts , and a pattern head temperature is controlled to use the import intellect warm accuse table ( making the temperature deviation within ) , therefore having pledged the quality of tube
本生产线采用plc进行程序化控制，实现挤出机主电机、牵引机电机的同步调速，并设置有良好的人机界面，所有工艺参数均可通过触摸屏进行设置和显示，每次生产只需查阅菜单，输入原先设定序号，整条生产线就可按原设定的管子规格和速度生产；切割机能自动定长切割，模头温度控制采用进口智能温控表（使温度偏差在1内），因此保证了管材的质量。