This is called a rarefaction and is represented by widely spaced dots.这个区域称为稀疏区,并用疏散的小点表示.The classical elementary waves in Riemann solutions include rarefaction wave, shock wave and contact discontinuity.黎曼解涉及的经典基本波包括疏散...
我立即陷入无限的愁思之中.All at once I fell into a state of profound melancholy.无限的哀情愁思向他悄悄袭来.Feelings of infinite melancholy stole over him.书中那无限的愁思,恰似一只云层中穿行的归心似箭的鸟儿.That book of limitless yearning was like an eager bird through t...
取120个值计算平均数。Take a hundred and twenty values and calculate the mean.就像歌里唱的那样，两者密不可分，不能只取其一。You can't have one without the other, as the song says.她可以打电话点餐，叫人来取要洗的衣服以及叫其他各种服务。She could ring for food and drink, laundr...