一旦杂质沉淀下去，油就可以分级了。Once its impurities had settled, the oil could be graded.将在统一费用和分级费用之间作出选择。The choice will be between a flat-rate or a banded charge.木材按厚度分级.The timber is graded according to its thickness....
这些云带必定引起行星反照率的经向不对称性.These bands must introduce longitudinal asymmetry in the planetary albedo.如果恒星的光谱已知, 就可得出尘埃的反照率.If the stellar spectrum is known, the albedo of the dust can be obtained.有云区也可能是输射亏损区,因为云有较高的反照率.Cloudy...
Caspar was weeding the garden.卡斯珀正在给花园除杂草。Caspar lingered near the chimneypiece.卡斯帕在壁炉架附近徘徊.Caspar Henderson is an award - winning writer and journalist on environmental affairs.卡斯帕?亨德森是一位荣获环境新闻奖的作家和记者....
Check for eyestrain by putting your hand to your forehead a salute.方法是将手放在前额呈敬礼状.To reduce eyestrain, we are going to install anti - glare screens on all of the company's computers.?为了减轻眼疲劳, 我们将在公司的每一台计算机上都安装防辐射屏.Ch...