Laminate flooring, also known as impregnated paper laminated wood flooring / laminate flooring, consists of a wear layer, a decorative layer, a high density substrate layer, and a balanced (moisture resis…
Before and after the beginning of autumn, it is the sowing period of Chinese cabbage in North China, but the diseases of soft rot, dry heartburn, downy mildew and black spot disease affect the yield and quality of Chinese cabbage every year, which is a big worry for farmers.
Mos…
The main research is to study the force form of bolts. According to different bolt connection forms, theoretically study the force between various contact surfaces. It is found that different bolts and different mounting stiffness provide …
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Compared with a large RV, the “walking house†does not have an a…
Nowadays, cervical spondylosis is high. To prevent cervical spondylosis, it is essential to have a healthy and comfortable sleep. Because memory pillows have unique characteristics, many consumers choose …
The plunger coupler is the core part of the plunger fuel injection pump, and the plunger is one of the two precision parts that make up the plunger coupler. The chute is a common structure on the plunger (see Figure 1) and is the fundamental structure for adjusting the fuel quantity of the …
The maintenance quota can be divided into three parts : preventive maintenance system, maintenance and repair quota, …