绝大多数非线性微分方程是不能用解析方法求解的.The overwhelming majority of nonlinear differential equations are not soluble analytically.与微分相反的运算叫做积分.The operation that is the inverse of differentiation is called integration.这称为正规微分方程组.This is...
She persistently asserted her opinions.她果断地说出了自己的意见。Rachel gently but persistently imposed her will upon Douglas.雷切尔委婉但执著地把自己的意愿强加给道格拉斯。Remind yourself persistently to be aware but be eager for progress.不断地提醒自己保持觉察但不要急于进...
Bank robberies, burglaries and muggings are reported almost daily in the press.报纸上几乎每天都有抢劫银行、入室行窃和拦路抢劫的报道。Over 100 burglaries are reported every month, and that's just the tip of the iceberg.每月报案的入室盗窃案超过百起, 而这只不过是冰山...
You will feel more buoyant and optimistic about the future than you have for a long time.对于未来，你的感觉会比过去很长一段时间里更加自信和乐观。We were in a buoyant mood after winning our match.我们赢了比赛,心情很振奋。We have a buoyant economy and unemployme...
Objective : To improve the therapeutic effect of infraorbital neuralgia.目的: 提高三叉神经第2支疼的治疗效果.Objective : To observe anesthetic effect of disoprofol combined with infraorbital nerve blockade on cheiloschisis repairing oper...