Members of the public meet the conditions of inoculation can also be vaccinated to prevent a flow of vaccine, you can also go through the less densely populated places, and proper personal hygiene and wash their hands more exercise, to enhance its resistance; schools, preschools and other places crowded with people We should conscientiously implement the indoor ventilation, examine morning newly, the epidemic reporting preventive measures.
基于1个网页-相关网页
How to enhance the crack resistance of concrete, to reduce its brittleness in the pavement concrete is important.
如何提高混凝土的抗裂性、降低其脆性在路面混凝土中尤为重要。
According to requirements, plant-growing regulator can not only enhance plants to grow, but also control its short shape in order to increase its output and improve resistance.
根据需求，既能促进植株生长，也能控苗矮化株形，从而达到增加产量和提高抗逆性的作用。
应用推荐