When the water level was high, the user needed only to descend a few steps to reach it; when it was low, several levels would have to be negotiated.
当水位高的时候，使用者只需要往下走几个台阶就能到达井的部位；当水位低的时候，就要走好几层了。
When they dropped a stone into a wide tube, the water level raised in a connected narrow tube.
当他们把一块石头扔进一个粗试管时，相连的一个细试管里的水位上升了。
The falling water level denoted the passing hour as it dipped below hour lines inscribed on the inner surface.
当下降的水位低于内表面刻下的小时线，表示经过了多少时间。
For example, a pond in hilly country that maintains a steady water level all through a dry summer in spite of having no streams flowing into it must obviously be seepage dominated.
例如，在丘陵地区的一个池塘，尽管没有小溪流入但在整个干燥的夏季保持稳定的水位，显然一定是以渗流为主。
There wasn't enough difference between the height of the ground level and the water level.
地面高度与水位没什么明显的区别。
The water clock told the time by the water level in the bowls.
水钟是根据碗中的水位来报时的。
Trees may use several quarts a day, so check the water level in the stand every few hours.
一棵树一天要消耗好几夸脱的水，所以你得隔几个小时就检查一次架子里的水位。
All these earthquakes happened when the water level in Zipingpu reservoir was low.
所有这些地震都发生在紫坪铺水库水位很低的时候。
The surrounding basin is that of Red River, but because Devils lake's own basin is closed, the lake must reach a sufficient water level before the water travels elsewhere.
周围的属于红河的流域，但是由于魔鬼湖流域是封闭的内流区，必须使湖面水位达到足够的高度，水才能流到其他地方。
With the water level now gradually receding, Chen and his 20 comrades are lodged in villages near the flood zone.
如今，洪水正慢慢褪去，陈夏勇和20位战友还住在洪灾区附近的老乡家里。
Disadvantages: Expensive; can be fiddly, since you need to adjust the water level until it's right for you.
缺点：贵；因为你需要调整水量来调整舒适度，所以可能会比较不便。
Firstly comes a gradual change in water level, the forerunner, a few hours ahead of the storm's arrival.
首先出现水位的逐渐变化，这是风暴到达前几小时的先兆。
The state’s biggest reservoir—Lake Shasta in northern California—is full to the brim, with a water level way above its historical average.
其最大的水库——加利福利亚北部的沙斯塔湖（Lake Shasta）——水位已经超过了历史均线达到水库边缘。
"This is the second time since 1985 that the water level went up too fast, " said Phan Trietn in Quang Binh province.
“水位上涨得太快，自一九八五年以来这是第二次，”广平省人藩切（音）说。
45 min the water level in the primary loop continues to drop. Gauges in the control room erroneously indicate that the water level is up.
45分钟主回路的水位继续下降。控制室中的仪表误报水位在上升。
Then you have a low steam generator water level which means that you probably have a leak somewhere and the question is, is it on the primary side or on the secondary side?
然后你们会得到低的蒸汽发生器的水位，那表示可能在某个地方出现了泄漏，而问题就是，那是在主面还是在次级面？
Manchhar lake is Pakistan's largest freshwater lake, and its water level varies considerably over time.
曼查尔湖是巴基斯坦最大的淡水湖，其水位随时间变化非常大。
The water level in the lake in late summer 2010, however, was unusual if not unprecedented.
然而在2010年夏末，就算不能说水位是史无前例，也可以说是非同寻常的高。
The experience is always different because both the light and the water level of the lake are continually changing.
这种是一种不同寻常的经历，因为在那里光和湖平面都是在不断变化的。
They have huge problems with water level, with pesticide problems, and complications which are now coming home to roost.
他们遇到严峻的水位问题，农药问题，错综复杂的问题正让他们遭受报应。
This is a known and anticipated process, but the amount of hydrogen gas produced was unknown because the operators didn’t know the exact temperature of the fuel rods or the water level.
这个过程是被预见的，但是大量的氢气是否会产生无法预测，因为操作员并不知道燃料棒的确切温度，也不知道水位线到底多高。
This is a known and anticipated process, but the amount of hydrogen gas produced was unknown because the operators didn't know the exact temperature of the fuel rods or the water level.
这个过程是被预见的，但是大量的氢气是否会产生无法预测，因为操作员并不知道燃料棒的确切温度，也不知道水位线到底多高。
According to Fan, changing the water level strains them.
根据范晓的说法，水位的改变使断层紧绷。
When it was necessary, the submarine came inside that camera, workers lowered the water level and started the repairing of the submarine.
当有必要的时候，潜艇会进入那个暗室，工人将水位降低，然后开始对潜艇进行维修。
Never let the water level fall below the base of the tree or the cut end may seal over, preventing further water intake.
不要让水位降到树基以下，或者树干截面以下，否则截面干涸以后，松树就无法充足的吸收水分了。
Unfortunately, lowering the water level suffocated significant numbers of fish.
然而降低的蓄水位却窒息了大量的鱼。
The radioactive debris is produced when the core is exposed above the coolant water level and overheats.
当核心暴露于冷却水位以上并过热，那放射性碎片就会产生。
By 1950, though, human activities had started to make an impact. Then, the water level began to drop at a rate of 30 centimeters (about a foot) each year.
到1950年，人类活动开始产生深远影响。那时，水平面开始以每年30厘米的速度下降。
By 1950, though, human activities had started to make an impact. Then, the water level began to drop at a rate of 30 centimeters (about a foot) each year.
到1950年，人类活动开始产生深远影响。那时，水平面开始以每年30厘米的速度下降。
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