This forms the basis for our mathematical expression for the electric field.这是电场数学表达式的基础。Mathematical physics is an almost impossibly difficult subject.数学物理是一门难得超乎想象的学科。He towers above his fellow students in mathematical...
Variational principles play an important role in the formulation of many problems of mathematical physics.变分原理现在许多数学物理的表述中起着重要作用.After studying differential calculus you will be able to solve these mathematical problems....
上星期天你收到我的电报了 吗 ?obtain是较正式用语,常指“通过努力工作、奋力或请求而得到所需的东西“,如:Did you get my telegram last Sunday?请原谅, 我可以问个问题 吗 ?inquire是 较正式的书面用词,含有“渴望知道某人或某事确实情况“的意思,如:Excuse me . May I ask you a question?...
雷酸形成的一种盐或酯.An explosive salt of fulminic acid fulminate of mercury.异氰酸形成的一种盐或酯.A double salt of platinous cyanide and another cyanide.铬酸形成的任何盐或酯.A salt or an ester of picric acid....