It is a very important tool for enterprises to realize electronical commerce.因此网络虚拟现实对于企业实现电子商务有重要的意义.Bachelor degree or above, majoring in electronical engineering, acoustics or physics.电子工程 、 声学或者相干物理学专业本科及以上课历.Master ...
吲哚乙酸, 激动素或赤霉酸的外源施用刺激了光合作用.Exogenous applications of indoleacetic acid, kinetin or gibberellic acid stimulate photosynthesis.赤霉酸也可加强雄性的倾向.Gibberellic acid may also accentuate the trend toward maleness.赤霉''.'...
The city is built on the rock rising out of ravines.这座城市建在高出峡谷的岩石上.They jumped ravines, they slid down cliffs.他们是沟也跳, 是崖也跳.Birches and oaks feathered the narrow ravines.桦树和橡树密生于狭谷中....
病牛频频企图排尿,搏动坐骨弓上的尿道.The sick cow frequently attempts urination and pulsates the urethra over the ischium arch.病牛频频企图排尿,坐骨弓上的尿道发生搏动.The clistressed cow frequently attempts urination and pulsates the urethra over the ischia...