二氧化碳
èr yǎng huà tàn
Pinyin
Definition
二氧化碳
-
- carbon dioxide CÓ
Character Decomposition
Idioms (20)
一不做,二不休
- 1 don't do it, or don't rest (idiom); either give up, or go through to the end
- 2 Since we started, we must carry it through whatever happens.
- 3 in for a penny, in for a pound
一干二净
- 1 thoroughly (idiom)
- 2 completely
- 3 one and all
- 4 very clean
一分为二
- 1 one divides into two
- 2 to be two-sided
- 3 there are two sides to everything
- 4 to see both sb's good points and shortcomings (idiom)
一哭二闹三上吊
- 1 to make a terrible scene (idiom)
- 2 to throw a tantrum
一回生二回熟
- 1 unfamiliar at first, but well accustomed soon enough (idiom)
Sample Sentences
哎呀,我是晚上去的,怪不得我们没碰到。晨跑当然没有夜跑好啊,早晨二氧化碳含量高,不利于有氧运动的。
Oh no. I went in the evening, no wonder we didn't meet each other. Of course, an early morning run is not as good as an evening run. In the early morning, carbon dioxide is high, and it is not good for aerobic activities.
你想想啊,首先,煤电厂排放的不只是二氧化碳,还有其它有害气体,比如氧化氮和二氧化硫,这些有害气体的排放量比汽油汽车高很多。其次,在制造电动汽车时,它对环境的破坏更大。先要生产锂电池吧,这些锂电池体积很大,制造费用昂贵,尤其是特斯拉的电池更贵,它比对手的电池要更大更强大。许多电动汽车的电池要用到稀土,它本来就稀缺,而且提炼也耗钱。特斯拉的AC感应电动机没有使用稀土材料,但是公司的工程师也承认,S型汽车生产时消耗的能源比凯美瑞多。因此,在最初上路之前,S型汽车就已经远比其它汽车污染重了。你开得越久,它才越绿色。
Think about it. First, coal-fired power plants do not only emit carbon dioxide, but also other harmful gases; for example, nitrogen oxide and sulfur dioxide. The amount of emissions from these harmful gases is much higher than what comes from gasoline cars. Secondly, the damage to the environment is greater when manufacturing electric cars. First you need to produce a lithium battery. The volume of these lithium batteries is huge, so it is costly to manufacture them. Tesla's batteries are even more expensive as they are bigger and stronger than the competitor's. Many electric car batteries use rare earth elements, that are scarce, and which are costly to extract. Tesla's AC induction motor doesn't use rare earth materials, but the company's engineer also admits that when producing Model S cars, the consumption of energy is more than for a Camry. Therefore, in the beginning, before you get on the road, Model S cars have already caused much more severe pollution that other cars. The longer you drive it, the greener it will then become.
能使燃着的木条越烧越旺的是氧气,被点燃的是氢气和一氧化碳。然后再用澄清的石灰水检验燃烧生成的气体。因为一氧化碳燃烧会生成二氧化碳。
The one that can make the wooden splint burn brighter and brighter is oxygen. The ones that ignited were hydrogen and carbon monoxide. Afterward, use the settled limewater again to test the gas produced by the burning. Because carbon monoxide produces carbon dioxide when burned.
先用澄清的石灰水检验出二氧化碳,然后用燃着的木条,然后,嗯......
First, use the settled limewater to test for carbon dioxide, then use the burning splint, then...ah...
这瓶是二氧化碳!
This bottle has carbon dioxide!
先检验二氧化碳吧!快拿4根试管出来,倒入澄清的石灰水。
Let's first test for carbon dioxide! Quick, get out four test tubes, and pour in the settled limewater.
先检验二氧化碳!
Test first for carbon dioxide!
二氧化碳能使澄清的石灰水变浑浊。
Carbon dioxide makes clear limewater turn murky.
大家看,这4瓶气体是氢气、氧气、一氧化碳和二氧化碳,可是没有标签,我们该怎么鉴别?
Look, everyone. These four vials of gas hold hydrogen, oxygen, carbon monoxide, and carbon dioxide. But they aren't labeled, so how do we distinguish them?