二氧化碳

Antonov reckons that it could be used to reduce the size of a car's engine by up to 50%―so it would use less fuel and produce fewer CO2 emissions, but still provide good performance.

安东诺夫估计这个装置能够把汽车引擎的尺寸缩小达50%――在提供良好性能的前提下，能够减少燃料消耗和二氧化碳排放。

Based on the ratio of the minerals, the team reports in tomorrow's issue of Nature that CO2 levels during the Archean could have been no higher than about 1000 parts per million—about three times the current level of 387 ppm and not high enough to compensate for the weak sun.

根据两种矿物的比例，研究小组在明天出版的《自然》杂志上报道说：在太古代期间，二氧化碳的水平决不会高于大约百万分之一千（1000ppm）——大约三倍于目前的水平（387ppm），不足以弥补阳光的弱势。

Based on the ratio of the minerals the team reports in tomorrow's issue of Nature that CO2 levels during the Archean could have been no higher than about 1000 parts per million—about three times the current level of 387 ppm and not high enough to compensate for the weak sun.

根据两种矿物的比例，研究小组在明天出版的《自然》杂志上报道说：在太古代期间，二氧化碳的水平决不会高于大约奥︱分之一千（1000ppm ）——大约三倍于目前的水平（387ppm ），不足以弥补阳光的弱势。

Sagan and his co-author George Mullen hypothesized that carbon dioxide (CO2) concentrations were much higher during the Archean—possibly 100 times higher than they are today—and therefore the atmosphere could retain enough heat to keep the planet from freezing.

萨根及同事乔治·马伦提出假设：在太古代期间，二氧化碳浓度要高得多——可能比现在高出100倍，因此大气中可能保留了足够的热量，使地球免于冻结。

According to the science report, as the environment pollution comes worse and worse, the discharge of CO2 is increasing, the temperature is increasing too. If it cannot be improved yet, at the middle age of this century, the iceberg and glacier of the Antarctica and the Arctic Pole will melt because of the "greenhouse effect", at that time, the sea level will rise and even submerge the land which we live on!

据科学家报道，由于现在环境污染严重，二氧化碳排放日益增加，地球气温逐年增高，如果还不得到改善，本世纪中叶，气温问题将引起南北极冰川融化，到时海平面会上升，甚至将淹没我们赖以生存的陆地！

You may be missing out on valuable aromatics, you may be stripping the beer of carbon dioxide

你可能错过了一个宝贵的香味，你可能剥离了啤酒中的二氧化碳

To explore the effect of CO2 pneumoperitoneum on atelectasis and oxygenation in patients during general anesthesia.

目的 观察二氧化碳(CO2)气腹对全身麻醉下肺萎陷程度及肺部氧合的影响。

Mr Obama wants to auction off, rather than give away, permits to emit carbon dioxide.

奥巴马想对二氧化碳的排放许可进行拍卖，而不是采取分发的方式。

Confirmation of correct tracheal tube position relies on directvisualization or indirect measures, such as auscultation andcapnography.

证实正确的气管插管位置依赖于直接可视或间接措施，如听诊和二氧化碳波形图。

The carbon dioxide in the atmosphere is taken up by autotrophic organisms and incorporated into carbohydrates.

在大气中存在的二氧化碳被自养生物体所吸收并合成为碳水化合物。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。