Metering device and application of differential pressure gas flow meter selection Hu Haiyan (Shengli Oilfield Hekou Oil Production Plant technical inspection station measurement station, Shandong Hekou differential pressure gas flow meter is a kind of most widely used gas flow meter, in va…
First, draw a mold diagram
It is required to be drawn in accordance with national drafting standards, but it is also required to combine the factory's standards with the customary drawing methods not specified by the country. Before drawing the mold a…
After the air conditioner is turned on, the initial state of the air conditioner should be point A. The speed corresponding to point A is high speed, which means that the air conditioner will heat up rapidly with maximum power and reach the temperature set by the user in the shortest t…
On the morning of December 29, 2008, Wu Zhenghe, general manager of Dafang Company, hurriedly drove to Taiyuan to participate in the group's meeting. But in the future, he probably will not participate in the meeting of Taiyuan Heavy Industry, because not long ago, Big Gear has b…