热塑性材料能够不断的再熔化和再冷却而不需要经历任何可测量的化学变化. Thermoplastic materials can be remelted and cooled time after time without undergoing any appreciable chemical change.
The mechanisms of the effect of small molecules salt on the mixture are lucubrated.并阐述了小分子盐对体系微观结构和黏度的影响机理.Firstly , we lucubrated the problems on the economic running quality of the coal industry qualitatively.首先对我国煤炭产业...
不过，这种车即使在干燥路面上也表现出了良好的抓地性能。Such cars, however, do grip the road well, even in the dry.将粮食和谷物储存在阴凉干燥的地方。Store grains and cereals in a cool, dry place.土壤干燥时，植物会流失更多的水分。When the soil is dry, more moisture is lost from the p...