Underpinning this success has been an exemplary record of innovation.具有典范性的创新确保了这次成功。But underpinning Mr Armstrong's technology changes is a human touch.但阿姆斯特朗技术变革的支柱是人情味.It was rectified by method of preloaded pile...
Furiously he tested the spark - plugs, stared at the commutator.他气呼呼地测试着火花塞, 眼睛盯着转换器.The two ends of the wire are connected to a split - ring commutator.导线的两端联接到裂环整流器.Commutator and brushes shall be free of grease, or ot...
The earth rotates on its axis once every 24 hours.地球每24小时依其轴心自转一次.The camshaft rotates in phase with the crankshaft, but at half its speed.凸轮轴和曲轴协调旋转, 但速度仅是曲轴的一半.The earth rotates once a day on its axis.地球绕它的自转轴一天旋转一周....
阿利斯泰尔已小心翼翼地将那张报纸折起,放在厚纸袋下面。Alistair had carefully folded up the paper and stowed it away under the sacks.我把书装在厚纸袋里提着.I carried my books in a strong paper bag....