外面的空气沉滞、潮湿而闷热。The outside air was heavy and moist and sultry.男式灯笼裤已不时兴了,成了滞销货.Men's knickers went out of style and are now a drug on the market.一般说来,这些材料不显示磁滞现象.As a rule these materials do not show hysteresis....
These strands of molecules twine around each other to form cable-like structures.这些分子链彼此缠绕，形成缆线状的结构。The molecules in regular liquids are held together by relatively weak bonds.常规液体里分子之间的键合力相对较弱。There are data on the rate...