The use of metallised fabrics is sometimes proposed to reduce the emissivity of a fabric.不时地有人建议采用镀有金属膜的织物以减少织物的发射率.Cloudtop properties include cloudtop pressure, cloudtop temperature and cloud effective emissivity.云顶性质包...
真空包装的火腿片应在食用前30分钟把包装除去。Vacuum-packed ham slices should be unwrapped 30 minutes before serving.玻璃瓶中盛满了被食用色素染过色的水。Glass bottles are filled with water tinted with food colourings.标签上印着“请于7月14日前食用”。"Eat before Jul 14" was st...