The water evaporates and the salts are left behind, creating a white crustal layer that prevents air and water from reaching the underlying soil.
水蒸发留下盐分，形成白色的地壳层，阻止空气和水进入下面的土壤。
At that moment, a little girl in a white dress, holding a long, dripping water lily, dodged from behind a bush, stared at them and dodged back again.
在那一刻，一个身着白衣的小女孩，举着一支长长的、滴水的百合花，从后面的树丛中跳了出来，直勾勾地盯着他们，又闪回去了。
Heavier isotopes tend to be left behind when water evaporates from the ocean surfaces, the remaining ocean water becomes progressively enriched in oxygen 18.
当水从海洋表面蒸发时，往往会留下较重的同位素，所以剩余的海水会逐渐富含氧18这种同位素。
Preventable water-related diseases kill an estimated 10,000 to 20,000 children every day, and the latest evidence suggests that we are falling behind in efforts to solve these problems.
据估计，与水有关的可预防疾病每天导致1万至2万名儿童死亡，而最新证据表明，我们在解决这些问题方面仍处于落后状态。
Water in the vadose zone drains down to the water table, leaving behind a thin coating of water on mineral grains.
包气带中的水会沉降到地下水位，只在矿物颗粒表面留下一层薄薄的水膜。
Teri and Kim head for the water tower alone with Jack and Rick not far behind.
泰瑞和金姆独自向水塔方向行进，杰克和里克就在不远处。
These years, Qomolangma is in danger because many people leave their waste behind, such as water bottles and plastic bags.
这些年来，珠穆朗玛峰处于危险之中，因为许多人把垃圾留在这里，如水瓶和塑料袋。
Water shortages have provided the hidden impulse behind many land deals.
隐藏在许多土地交易背后的推手是水资源短缺。
Water in reservoirs behind dams, plus the water used to irrigate nearby land puts more moisture in the air, which falls as precipitation.
大坝后面水库中的储水，加上用来灌溉土地的水，会增加附近地区的潮湿度，使降水量提高。
When emperor penguins glide through the water, tiny air bubbles trail behind. On land, they are much less graceful.
这是企鹅们滑入水中的一刻，身后带着一串长长的气泡。在陆地上，他们可远没有这么优雅。
A sweating, bespectacled farmer who was standing behind the camera said that all the snakes had come out of the water and climbed into the trees.
一位站在摄像头背后，汗流浃背，带着眼镜的农民说，所有的蛇都浮出水面爬到树上。
They were formed in the 1990s by diverting water from lake Nasser, an artificial lake formed behind the Aswan High Dam on the river Nile.
它们是由于1990年代从纳赛尔湖调水而形成的，是在尼罗河上的阿斯旺大坝后面形成的人工湖。
Here, the outside world seems to vanish behind enfolding mountains, quarantined away by river, still water, and wetland.
这里，外面的世界似乎消失在群山之中，隐没在河流、静水和湿地之中。
But critics say the sheer weight of water backed up in the 410-mile-long reservoir behind the dam has increased the danger of earthquakes and landslides.
但是评论家们认为大坝背后长达410英里的水库中庞大的蓄水增加了地震和山体滑坡的威胁。
Moreover, once it has done its job, the iron in ferrates precipitates too, as iron oxide, leaving pure water behind.
此外，当它的使命结束后，高铁酸盐中的铁离子也会以氧化铁的形式沉淀，过滤后就是洁净的水了。
Behind the house was a walled-in enclosure with a tank and a flight of steps leading into the water from a bathing platform.
房子后面是块四面围墙的圈地，里面有个水池，几层台阶从沐浴台直通到水边。
The system runs on a green hydrogen peroxide propellant that leaves behind only water and oxygen, a solution not too far from the hydrogen peroxide in the common medicine cabinet.
系统使用只会产生水和氧气的过氧化氢环保推进剂，类似家庭常备医药箱里的过氧化氢溶液。
They left behind hundreds of wounded men. For four days, the wounded lay on the battlefield crying for help, for water.
四天来，这些躺在战场上的伤兵哭 叫着寻求帮助，他们要水喝。
It takes just two or three big waves to signal doom: once water flows behind the defences, even the thickest ramparts are swift to collapse.
一两个大浪就可以宣告末日将至：海水一旦流过城墙，再厚的城墙也难逃一塌。
Then, at the other end of the island, just as we were lowering our rafts back into the water, Cho said calmly: ‘Look, Ed, behind you.’
接着在岛屿的另一端，也就是我们停靠橡皮筏的地方，曹平静地说：“爱德，看，你后面。”
On August 10th Mr Putin got behind the controls of a plane dropping 12 tonnes of water on two fires.
8月10日，普京被拍到在一架飞机控制台后，这架飞机正向两片大火洒下重12顿的水。
Estonia's Alar Voogle and Kristi Viltrop tripped in the water obstacle and were second some five seconds behind the winners.
来自爱沙尼亚的艾拉•弗苟和克丽斯提•维尔特洛普夫妇在水障碍区中绊倒，以5秒之差屈居第二。
Sampling devices include hoses and flasks to collect water samples, and sometimes, plankton are collected on filters dragged through the water behind a ship.
一般使用包括软管和烧瓶在内的采样设备来采集水样，有时候，浮游生物是通过船尾的拖曳滤网收集的。
The figure trudged, or rather sloshed, onwards till the hill resumed and the treacherous sheet of water was left behind.
这人艰难地跋涉着、或者说是踉跄着一直向前，将这座小山和讨厌的水洼甩在了身后。
But the high water table of Flanders and France’s aversion to building forts behind its Belgian ally left the Franco-Belgian border with only scanty fixed defenses.
另一方面，佛兰德斯的高水位的和法国人对于在比利时盟友后面建设堡垒的厌恶使得法国和比利时边境只建有寥寥几个固定防御点.
The idea behind enhanced, or engineered, geothermal systems is to inject water underground to enhance the permeability of rock, allowing for the release and capture of more heat.
增强型的或是工程型的地热系统将水注入到地下，使岩石的渗透性提高，这样便可以吸收或释放更多热量。
Thermal distillation involves heat: Boiling water turns it into vapor-leaving the salt behind-that is collected and condensed back into water by cooling it down.
热蒸馏涉及到加热：沸腾的水变成水蒸气- - -盐分留了下来- - -被收集的蒸汽冷却后凝结成水。
Once that has happened, the water simply evaporates and the desired electronic sandwich is left behind in a thousandth of the time that it would take to make it using vacuum deposition.
一旦此工序完成，仅仅是水份被蒸发而所需的电子“三明治”得以保留，整个过程所花费的时间仅为“真空沉积法”的千分之一。
Once that has happened, the water simply evaporates and the desired electronic sandwich is left behind in a thousandth of the time that it would take to make it using vacuum deposition.
一旦此工序完成，仅仅是水份被蒸发而所需的电子“三明治”得以保留，整个过程所花费的时间仅为“真空沉积法”的千分之一。
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