民航交通灾害的发生一般由民航运输过程中外部环境突变、人为失误与飞机失控等因素相互作用所造成。
Civil aviation traffic caused by the transport environmental sudden change, fault caused by people and factor interaction out of control of plane generally.
以松辽平原为案例，首次提出并论证了“人类强胁迫力作用于脆弱环境系统必将导致生态环境突变”的命题。
Taking Songliao Plain as an example, the proposition that strong stress makes a fragile environment into catastrophe is demonstrated for the first time.
所以说，如果你并不处于疟疾环绕的环境，这个突变则只有坏处。
So if you're not living in a malaria environment, the mutation is just bad.
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