我们所有的飞机都有适航证书。All our aircraft have certificates of airworthiness.适航审定主要包括型号合格审定和生产许可审定及其他工作.Airworthiness certification includes Type Certification and Production Certification , and other related work.经审查合格的,发给出口适航证书.A...
I find him difficult to talk to — we're on completely different wavelengths.我没法和他谈话,因为我们俩完全不对路.Sunlight consists of different wavelengths of radiation.阳光由几种不同波长的射线组成。To detect shorter wavelengths, astronomers must p...
Unhappily, Taft was temperamentally unfitted to play the role that history demanded.不幸的是, 塔夫脱性格不适于扮演当时历史条件要求他扮演的角色.He walked unhappily towards the house.他怏怏不乐地向那屋子走去。On May 23rd, unhappily, the little boy died.令人伤心的是，5月2...
The agreement was declared void ab initio.此协议自一开始就被宣布无效。Let the point where AB cuts CD be called E.设AB线与CD线相交点为E.The line AB intersects the line CD at E.直线AB与直线CD相交于E点....
喜庆的彩纸已经挂在天花板上。Festive paper decorations had been hung from the ceiling.微笑、点头和喜洋洋的脸庞使喜庆的气氛变得更浓了。Smiles, nods, and cheerful faces added to the general gaiety.在喜庆的背后存在着隐忧。Beneath the festive mood there is an underlying appr...