氢气在工业上广泛用于制氨。Hydrogen is used extensively in industry for the production of ammonia.氢气是一种无色 、 无味的气体.Hydrogen is a corlourless, odourless gas.氢气对于气球来说是一种有用的气体, 它比空气轻.Hydrogen is a useful gas for balloons. It is lighter th...
They hauled feedlot manure from the ranches to fertilize their fields.他们从牧场的饲养场拖走肥料去肥田.It is important to match varieties in order that they may cross - fertilize.要配置的授粉品种必须是能互相授粉的.Fertilizer is a substance put on land t...
是带视频的激光唱片.CD - V ( compact disc with video ) is the laser disc with videos.公司主要经营音频和视频的全系列产品.The main lines are full range of audio and video products.为什么WindowsMediaPlayer播放我的抓取视频的时候有些混乱?Why does Windows Media Player pl...