查询词典 carbon dioxide

It is prepared by reacting anhydrous ammonia and carbon dioxide gas under very high pressure in the presence of a suitable catalyst.

它是在某种催化剂参与下，由无水氨和二氧化碳气体在高压条件下反应生成的。

The extraction from star anise fruits was obtained by supercritical carbon dioxide extraction(SFE-CO_2) method at the pressure 16 MPa,temperature 35℃,flow rate 30 L/h meanwhile time 2 h,and the star anise oil was obtained by steam distillation.

用超临界CO2萃取(SFE-CO2)技术，在压力16 MPa、温度35℃、反应时间2 h及CO2流量30 L/h的条件下，对八角茴香的果实进行了萃取，得到八角茴香萃取物，并用水蒸气蒸馏法提取八角茴香精油。

Within the last 50 years - little more than one hundredth of a millionth of the Earth's age - the carbon dioxide in the atmosphere began to rise anomalously fast.

在过去的五十年里--只比百万分之一地球年龄的百分之一多一点--大气中的二氧化碳浓度开始反常地迅速上升。

The data of blood gas show that CINB can meliorate the anoxemia and the state of carbon dioxide retention.

术后血气分析结果表明，A组可有效改善术后缺氧及二氧化碳潴留状态。

The 8.2m diameter main mirror of Antu, the first Unit Telescope ofESO's Very Large Telescope, is being cleaned using carbon dioxide snow.

名为Antu的ESO第一个8.2米口径的甚大望远镜，正在用干冰霜清洁。

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。

In order to optimize technological parameters of arecoline extraction from areca nut using supercritical carbon dioxide extraction technique, the effects of extraction temperature, extraction pressure and extraction time on arecoline extraction were explored by second-order regression general rotation design.

为了优化超临界CO2萃取槟榔碱的工艺参数，通过三元二次通用旋转组合设计实施试验，考察了萃取温度、萃取压力和萃取时间因素对槟榔碱萃取量的影响。

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

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。

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。