作者证实:单叶双曲面和双曲抛物面是直线曲面.The authors show that the hyperboloid of one sheet and the hyperbolic paraboloid are ruled surfaces.结果表明双曲面微透镜有较高的耦合效率.The results show that the hyperbolic microlens a better coupling - performance....
For foreign holidays you will need a valid passport.出国度假需持有效护照。Inside the passport was a folded slip of paper.护照里面有张折起的纸片。Evans was trying to obtain a false passport and other documents.埃文斯正试图取得一本假护照和其他证件。...
This will give your promotional material individuality and style.这会让你的促销品显得个性十足、格调高雅。Individuality is a valued and inherent part of the British character.个性鲜明是英国人固有的、也是他们看重的特点。People should be free to express their indiv...
Accidents are still the number one cause of premature death for Americans...交通事故仍然是造成美国人过早死亡的头号因素。Everyone is more reluctant to travel these days, not least the Americans.这段时间大家都减少了出游的欲望，美国人尤其如此。The Americans won't ...