In many laboratory equipment, although the biochemical incubator is not a very expensive experimental equipment, it is also a product with a low price. Therefore, in order to save costs, the product should be used and maintained reasonably. The maintenance tips of the bio…
The reasonable shape of the alley is to make the structure in a good stress state under different formation pressure conditions. It can ensure the safety of the roadway and the most economical materials, and at the same time, the section excavation works are the lea…
Design is a key step in the process of casting and an initial step. It is also a key step in the design of gear casting. It is related to the quality…
In the past two years, the “new normal†appeared in the commercial vehicle sector. To cope with the new changes, Yuchai consolidated its advantages and further accelerated the development of the …
The groundwater quality in our country has been seriously degraded. More than half of the 200 cities have extremely poor water quality. At the same tim…