From May 1st, the revised "Beijing Car Rental Management Measures" was officially implemented. According to the Measures, car rental services are provided, and 9 passenger cars (including 9 seats) are not allowed to be equipped with drivers. For .......
Solving the finite element equation, we can find various mechanical parameters of the deformation process. Since the radial return method has the characteristics of unconditional stability calculation, it is actually used for stress calculation in the large deformation elastoplastic finite.......
The recycled waste PET bottle (sheet) is shovelled into the furnace, crushed, dried, spun... At the other end of the machine, a roll of woven fabric stretches out. This is a scene .......
In the past, domestic chemical plants basically used ordinary circulating cooling water to transport centrifugal pumps. Because of the low efficiency of such centrifugal pumps, the loss of electrical power was particularly severe. In the second half of 2011, Shanghai Chlor-Alkali Chemical .......
Since 1969, Dongfeng has gone through forty-two years. With it, the “Shiyan†has also developed into a commercial vehicle capital in China and even the world today. In 2011, Dongfeng Commercial Vehicle Co., Ltd. achieved sales of 235,000 heavy trucks, and heavy trucks l.......
On the evening of January 31, Xingma Motor announced that “Anhui Hualing Motors Co., Ltd. has received approval from the Development and Reform Commission and agreed that Anhui Hualing Automobile will build an annual production capacity of 50,000 heavy-duty vehicle engine pro.......
The comparison of the process parameters of the new and old rotor components is the design parameters of the steam turbine before and after the technical transformation. In order to check the actual operating conditions of the internals of the compressor under the pressure of the inlet.......