He may have been to some of those places.那些地方他也许去过一些。Those who have been to Dalian all say it's beautiful.凡是去过大连的人都说大连很美.I have been to see John.我去看过约翰了....
Vowels have something to do with glottal closure, therefore influencs acoustical measures.结论:元音不同,声门闭合度存在差异, 进而影响声学测试的参数.The glottal stop and uvular & quot ; r & quot ; and & quot ; ch & quot ; in German & quot ; bach & ...
有许多几何参数影响这些系数, 且设计外型变化很大.A large number of geometrical parameters influence these coefficients, and range of design configuration is wide.组装精度 、 焊接工艺 、 焊缝外型 、 探伤焊缝以及钢结构矫正.Precision assembly, welding technology, weld desi...