It removes heat from the air outside or the ground below and uses it to supply heat to a building or its water supply.
它从外面的空气或下方的地面收集热量，并用此来供应建筑物或其供水所需的热量。
Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that expand over time and let in more outside air.
1939年以前建造的房屋每平方英尺消耗的能源比2000年以后建造的房屋多50%，这主要是由于微小的裂缝随着时间的推移而扩大，更多的外部空气进入了裂缝。
The pressure of the helium inside a blimp is about the same as that of the air outside, so the gas does not rush out.
气球飞艇内部氦气的压力和外部气压相近，因而气体不会溢出。
They again ate outside, for Clara had to be in the open air all day, if possible.
他们又在外面吃饭了，因为克拉拉如果她可以的话，一整天都会待在露天里。
There is also an outdoor viewing platform where you can go outside to enjoy fresh air.
还有一个户外观景平台，你可以在外面享受新鲜空气。
The system also cools the air around the water, creating a bigger temperature difference so it can absorb more heat from the outside air.
这个系统同样也给水周围的空气降温，产生出更高的温度差，这样它就能从外部空气中吸收更多的热量。
Water in the sand between the two POTS evaporates through the surface of the larger pot, where drier outside air is moving.
两个罐子中间沙子的水分通过大罐的表面蒸发，使大罐外部的干燥空气开始流动。
Ventilate as much as possible to completely air out the room or spill zone with outside air.
尽可能地通风，以彻底用室外空气置换房间或泄漏区域的空气。
This approach allows data centers to use outside air when the temperature is cool, while falling back on chillers on warmer days.
该途径使得数据中心在外面温度较低时能够利用外面的空气，而在更热的日子里回去使用冷却器。
His only connection to the outside world was an air tube and a bell. Each day he rang a bell to let those outside know that he was still alive.
墓内的僧人和外界的一切联系只有一根输气管和一个铃铛，每天僧人都会摇铃使外面人知其还活着。
There's an air of menace outside the Polytechnic.
在理工大学之外，似乎弥漫着一种威胁的空气。
The heat generated in the compression phase is normally radiated into the air outside the building.
压缩阶段产生热量一般被辐射到建筑物外的空气中。
Open a window whenever you can to let in some fresh, cleansing air. The air outside is cleaner.
尽量打开窗户让新鲜、净化的空气涌入，外面的空气更清新。
The end result: windows that keep heat out in summer and heat in during the cold months, and radiators that pump heat to the building's interior without bleeding so much of it into the outside air.
那么这样的结果是：在夏天窗户可以把热量档在外面，而在寒冷的月份则把热量保留在里面。散热器可以把热量注入大厦内部而不需要那么多外部空气。
If you're having an argument with your spouse, tell him or her you need a minute and step outside for some fresh air.
如果你正在和配偶争吵，告诉他或他你需要几分钟的时间到外面呼吸一下新鲜空气。
Infiltration heat from warm outside air through small holes, cracks, and door seals.
由外部通过小孔、裂缝和门的密封圈而进入的渗入热。
Ochoa showed the journalists a black plastic lid that covered a swimming pool-size cement container of pig feces to prevent exposure to the outside air.
奥乔亚向记者带领记者参观了一个黑色塑料盖，它覆盖着一座游泳池大小的水泥猪粪池，以防止其与外界空气接触。
If the cores cannot be cooled sufficiently, a total meltdown could ensue, exposing the fuel rods to the outside air and further spreading radiation.
如果内核不能得到充分冷却，恐其随后将完全熔毁，从而使能源棒暴露在空气中导致辐射进一步扩散。
Sometimes it’s nice to do the alternate nostril breathing outside in the fresh air; that’s always relaxing to me.
有时候在户外新鲜空气里做交替鼻孔呼吸也不错；总能让我很放松。
But life outside Iran, while the air is plentiful, can be artistically disorienting.
然而，离开伊朗后的生活，虽然呼吸畅快，却会令人在艺术上迷失方向。
It is dependent on the temperature differential between the inside and outside air, type and thickness of insulation, and the area of the conducting surfaces.
这个主要取决于内外空气的温度差、绝缘层的类型和厚度以及传导面的面积。
The contract was signed at the ongoing MAKS-2009 air show just outside Moscow.
该合同已在莫斯科郊区的MAKS-2009国际航空航天展上签署。
Don't set your car's air conditioner or heater to recirculated air. Selecting the outside air option on your dashboard will reduce the number of pollutants you're circulating inside the car.
不要用汽车空调或加热器去循环空气，将操控仪表板选至外部空气会降低内部循环时产生的污染物。
The air outside the ball was ignored, and it was assumed that the air inside the ball behaved according to a compressive, viscous fluid-flow model.
分析假设球内空气的行为符合压缩、粘性流体流动模型。
Ceiling fans do not provide ventilation as defined as the introduction of outside air.
吊扇通常不提供所规定的能将室外空气引入室内的通风。
The controlled ventilation moves the outside air over an earth register, and thus enables it to warm up the cold outside air but also to cool down the hot air.
通过控制通风系统使外部空气在一个固定装置中移动，从而使它加热了寒冷的室外空气并且冷却热空气。
Water in the sand between the two POTS evaporates through the surface of the larger pot, where drier outside air is moving.
两罐之间的沙子中的水分经由大罐的表面蒸发，使大罐外部的干燥空气开始流动。
Water in the sand between the two POTS evaporates through the surface of the larger pot, where drier outside air is moving.
两罐之间的沙子中的水分经由大罐的表面蒸发，使大罐外部的干燥空气开始流动。
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