A statement by MEND said "a situation where the future of the Niger Delta is tied to the health and well-being of one man is unacceptable."
VOA: standard.2009.12.21
This is equal to zero. So this irreversible process this Joule-Thomson process, is a constant enthalpy process. Delta h for this process is equal to zero.
等于0。所以这个不可逆过程,也就是焦耳-汤姆逊过程,是一个等焓过程。
There is one exception. In the sixth century, I think it's around--imagine around 550 or something like that, the Greeks settle a single colony in the Delta of the Nile of Egypt at a place called Naucratis, and the root of that word is ship.
但有一个例外,在公元前六世纪,我想大概是,在公元前550年左右,希腊在埃及尼罗河三角洲,一个叫诺克拉提斯的地方建立了殖民地,Naucratis的意思就是船
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