Jiang also accused developed nations of abandoning the principle reached in earlier accords, which require them to cut greenhouse gas emissions, but do not make the same requirement of developing countries.
VOA: standard.2009.12.16
And then I am going to take sodium gas and I am going to make this into sodium gas plus electron.
接下来,将气态的钠,转化为,带正电的气态钠。
Make sure the gas is turned off.
一定要把煤气关了。
The White House says President Barack Obama will attend next month's climate change summit in Copenhagen,Denmark, and will make a provisional pledge to cut U.S.greenhouse gas emissions by 17 percent from 2005 levels by 2020.
VOA: standard.2009.11.26
Now going from three to four right, so we have another isothermal process for an ideal gas, so I won't try to make you sing again so soon.
从第三点到第四点,这也是一个理想气体的,恒温过程,这次不用你们集体回答了。
Their task is to find common ground, including on reduction of greenhouse gas emissions, promotion and transfer of new more eco-friendly technology and the necessary funding to make this possible, especially for the less developed and poorer nations.
VOA: standard.2009.12.08
The other electrode, we'd make chlorine gas.
另一个电极,我们得到氯气。
You make the volume infinitely large, the density of the gas infinitely small.
密度无限小,气体分子之间的相互作用。
Were going to make it for a mole of gas, T1 so it's R times T1, V and then we'll have dV over V.
假设是有一摩尔气体,那么就是R乘以,然后有dv除以。
But now, so this is where the refrigeration comes in. So if you take a gas, and you're below the inversion temperature and you make it go through this irreversible process, the gas comes out colder from that side than that side.
这就是冰箱的原理,如果在低于转变温度,的情况下我们将气体经过,这个不可逆过程,气体出来的温度将比这边低。
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