最高阶导数线性地出现的那种方程是准线性方程.A quasilinear equation is one in which the highest - order derivative appears linearly.这种 “ 导数边界条件 ” 的规定描述于 3-5 节中.The specification of such " derivative boundary conditions " is described in Sectio...
锅炉还可分成自然的或动力的通风类型.Boilers are also classed as natural or forced draft types.转子不能停在任意位置或动力不平衡.The rotor should not stop at any position or power imbalance.7.人工或动力执行机构:请包括所要求的技术细节.Manual or power actuators, please include ...
据悉，她有过一些与婚姻不相干的个人问题。She was known to have had personal problems unconnected with her marriage.这件事由我负责, 跟旁人不相干.I am responsible for the matter. None of other's business.这与你不相干.This has nothing to do with you....
Take cuttings from it in July or August.7月或8月时从它上边剪一些插枝。Pot the cuttings individually.把插条分别栽入盆中。Root the cuttings in a heated propagator.把插条放在加热的培育箱里生根。...
He was at his happiest whilst playing cricket.玩板球时他最开心了。Young adolescents are happiest with small groups of close friends.青少年在和自己小圈子里的好友呆在一起时最为开心。She was a studious child, happiest when reading.她是个勤奋好学的孩子, 读书最使她感到快乐.He w...
The crowd cheered as Premier Wayne Goss unveiled a lifesize statue of poet Banjo Paterson.韦恩·戈斯州长揭开诗人巴尼奥·佩特森的等身塑像时，人群欢呼起来。The Statue of Liberty was erected at the entrance of New York Harbour.自由神像是树立在纽约港的入口处的....a human-...