The switch works by passing a pulse of current between the tip and the surface.
电源开关的工作原理是让电流脉冲穿过触点和触面之间。
By extracting water from the detector's chamber, the detector's surface becomes a concave hemisphere.
通过从探测器的舱室中提取水分，探测器表面形成一个凹半球。
Recently, researchers have used data collected by monitoring surface water temperatures to improve the ability of a reef to recover from bleaching.
最近，研究人员通过监测表面水温获得数据，并用此数据来提升珊瑚礁从漂白状态中恢复的能力。
This suggests that Earth's water may have come from inside, driven to the surface to form the oceans, by geological activity.
这表明，地球上的水可能来自内部，由于地质活动，被带到表面形成海洋。
At the Earth's surface, these tempests can be detected by changes in the strength of the Earth's magnetic field.
在地球表面，可以通过改变地球磁场强度来检测这些风暴。
The sparse distribution of the feathers, however, also allows considerable lateral air movement over the skin surface, thereby permitting further heat loss by convection.
然而，羽毛的稀疏分布也使得皮肤表面形成相当大量的侧向空气流动，从而可以通过对流进一步散热。
Its surface has been cooked and dried by an ocean of carbon dioxide, trapped in the burning death grip of a runaway greenhouse effect.
它的表面已经被二氧化碳的海洋加热烘干，被失控的温室效应困在燃烧的死亡陷阱中。
All the time, water is being evaporated from the ocean's surface by the warmth of the sun.
由于太阳的热度，海水一直在从海洋表面蒸发。
It has been estimated that an additional one-fourth of the Earth's land surface is threatened by this process.
据估计，地球表面另外四分之一的土地正面临沙漠化威胁。
For this reason, Chang'e 4 will study the effect of solar winds on the lunar surface and any mineral found by the spacecraft.
出于这个原因，嫦娥四号将研究太阳风对月球表面的影响，以及航天器发现的任何矿物。
The mantle's motions, analogous to those in a pot of boiling water, cool the mantle by carrying hot material to the surface and returning cooler material to the depths.
地幔的运动类似于一壶沸水的运动，它把热的物质带到表面，再把较冷的物质带到深处，从而使地幔冷却。
Even if Earth's surface were not actually sterilized by this bombardment, it is unlikely that any but the most primitive life-forms could have survived.
即使地球表面并没有被这种轰炸所灭绝，但除了最原始的生命形式之外，几乎不可能有其他生命形式幸存下来。
I don't believe I'll come close to scratching the surface of what I would enjoy doing, by the time I've died.
我不相信，到我死的时候，我将接近抓挠我喜欢做的事情的表面。
Something in addition to the iron on Earth's surface must have absorbed much of the oxygen produced by plant life.
除了地球表面的铁以外，一定有什么东西吸收了植物产生的大量氧气。
Humus is necessary for rapid decomposition of leaves by bacteria and fungi and for recycling by surface roots.
腐殖质是树叶被细菌和真菌迅速分解和根部表面循环过程的必需品。
The color changes are executed by two different kinds of cells in the octopus' skin, mainly by color cells on the skin's surface call chromatophores.
颜色的变化是由章鱼皮肤上的两种不同的细胞造成的，主要是皮肤表面的色素细胞。
More familiar landscapes have been sculpted by surface erosion.
更多熟悉的地形是由地表侵蚀形成的。
Goods may be sent by surface mail or airmail.
货物可通过平邮或空运发送。
In response to viral infection, the immune systems of mice typically produce antibodies that destroy the virus by binding to proteins on its surface.
在病毒感染的反应中，老鼠的免疫系统通常会产生抗体，通过与病毒表面的蛋白质结合来破坏病毒。
A leatherback may be able to pick up some body heat by basking at the surface; its dark, almost black body color may help it to absorb solar radiation.
棱皮龟可以通过在水面上晒太阳来为身体获取热量；深色近乎黑色的身体颜色可以帮助它吸收太阳辐射。
It is held there by the force of surface tension without which water would drain instantly from any wet surface, leaving it totally dry.
它是由表面张力的力量保持的，没有它，水会立即从任何潮湿的表面流失，使它完全干燥。
As a way of reconciling these two facts, scientists have hypothesized that nearly all of the oxygen being produced was taken up by iron on Earth's surface.
为了调和这两个事实，科学家们假设，几乎所有产生的氧气都被地球表面的铁吸收了。
For one thing, the presence or absence of moisture is affected by the special qualities of the urban surface.
一方面，湿气的存在与否受到城市表面特殊性质的影响。
The impact of rainfall upon the surface water and groundwater resources of the desert is greatly influenced by landforms.
降雨对于沙漠地表水和地下水资源的影响很大程度上取决于地形。
Complex life evolved on the Earth's surface, but not on Mars or other planets in the solar system because on those planets, early surface life was killed by UV radiation.
复杂的生命在地球表面进化，而不是在火星或太阳系的其他行星上，因为在那些行星上，早期的地表生命被紫外线杀死了。
Because the surface of the water table is not flat but instead rises and falls with topography, groundwater is affected by gravity in the same fashion as surface water.
由于地下水位不是平面的，而是随着地形起伏的，所以地下水和地表水一样受到重力的影响。
Once Earth had gone through the final stages of its formation, gases bubbled to the surface and were held by Earth's gravitational field to form the atmosphere.
一旦地球经历了其形成的最后阶段，气体就会鼓泡到地表，并被地球的重力场控制，形成大气。
The water is usually naturally occurring groundwater that seeps down along fractures in the rock; less typically, the water is artificially introduced by being pumped down from the surface.
水通常是自然形成的地下水，沿着岩石的裂缝渗出；不那么典型的是，水是通过从地表抽水而人工引入的。
Nearly three quarters of the earth's surface is covered by water.
地球表面近四分之三被水覆盖。
During spring and summer, the surface of Mars is covered by strong storms.
在春季和夏季，火星表面被强风暴覆盖。
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