在气象图上气压差用等压线表示.Pressure differences are indicated on weather maps by isobars.具有大致同心的等压线的低压区在技术上称为气旋.A region of low pressure with roughly concentric isobars is known technically as a cyclone.气压梯度与天气图上等压线的间隔大小成反比.A line o...
Colloidal particles are bombarded by molecules of the dispersion medium.胶粒会受到分散介质分子的碰撞.Small molecule atomic particles, atoms extranuclear electron transfer.份子原子小粒子, 原子核外电子转.The pans were held in both hands and swirled a...
In the US, the camcorder has become ubiquitous...便携式摄录机在美国随处可见。Your camcorder should have these basic features: autofocus, playback facility, zoom lens.你的便携式摄像机应该具备以下基本功能：自动聚焦、回放功能、变焦镜头。Your camcorder should have these b...