理论技术包括播撒雨种降雨、利用生物可降解浮油控制水汽蒸发和轨道加热。
Theoretical techniques include seeding to cause rain, controlling evaporation with a biodegradeable oil slick and heating from orbit. Credit: David Fierstein
千百万朵云彩自大海中升起，水汽蒸发了许多，但大海并不会因此而减少。
Millions of clouds rise out of the sea, so much water evaporates, but the sea does not decrease because of that.
天气开始转暖时，冰雪消融，水汽蒸发，留下的只剩那些风帆石和它们神秘的移动轨迹。
Warmer months melt the ice and evaporate the water, leaving only the stones and their mysterious trails.
长久以来人们就知道树木能提高降雨量，原理就是，树木使大地变得更凉爽，同时减慢风力蒸发和侵蚀，并使叶子上的水汽蒸发到空气中去。
It has long been known that trees enhance rainfall by cooling the land, slowing wind evaporation and erosion, and transpiring water into the sky from their leaves.
这一气温变化看似微小，但是，举个例子说，渐增的温差可能会加剧海面水汽的蒸发，从而使暴风雨愈演愈烈。
Though such a change appears small, incremental differences can, for example, add to the ferocity of storms by evaporating more steam off the ocean.
灌溉草坪的时候不要过度用水，并且在早晨灌溉，以减少水汽的蒸发。
Don't over-water your lawn, and do so in the morning, when less evaporation occurs.
家里的现金已经如水汽般蒸发掉了，随著由于全球对产品需求降低导致全中国范围内生产资金流失而消失。
The family's cash earnings have evaporated, snatched away by a manufacturing crash cascading across China caused by falling global demand for its goods.
在蒸发的水汽扩散阶段，砾石含量越多，蒸发损失量随时间波动幅度越大。
During the water vapor diffusion stage, the range of water evaporation loss increases with the increase of gravel content.
华南中、东部的年平均水汽汇与该地区的年平均降水一样，存在增加的气候变化趋势，而该地区的蒸发量则有减少的趋势。
There exists an increasing-trend variation in the annual mean moisture sink and the precipitation over the central-eastern part of Southern China and a decreasing-trend in the evaporation.
蒸发率、降水率和降水再循环率在20年中均有增加，表明气候变暖对我国北方地区的水汽循环的影响已经显现。
Evaporation, precipitation and recycling ratios increase during the 20 years, which may be the effect of the climate warming.
近日，受冷空气影响济南气温骤降，泉水温度大大高于气温，蒸发的水汽上升遇冷形成“云雾”，再现“云雾润蒸”景观。
Influenced by cold air arriving at Jinan recently, the relatively high temperature of the spring produced beautiful scene of steamy vapours as the steam rose against cold air.
黑河流域冷季主要受西风带水汽控制，局地蒸发水汽较弱；
This probably because that Heihe River Basin was mainly controlled and affected by water vapor of westerlies, and local evaporation was weak in cold season.
湿物料吸热后蒸发的水汽，通过真空泵经真空排气管被抽走。
The vaporized steam can be pumped out through vacuum exhaust pipe when the damp raw material absorbed heat.
湿物料吸热后蒸发的水汽，通过真空泵经真空排气管被抽走。
The vaporized steam can be pumped out through vacuum exhaust pipe when the damp raw material absorbed heat.
应用推荐