The solution is degassed by alternately freezing, evacuating and thawing.通过交替的冻结 、 抽空和溶化来使溶液除气.The troops were severely mauled and lost a quarter of their strength before evacuating the island.部队遭到重创，从岛上撤退前损失了四分之一的兵力。The...
The troops were severely mauled and lost a quarter of their strength before evacuating the island.部队遭到重创，从岛上撤退前损失了四分之一的兵力。The solution is degassed by alternately freezing, evacuating and thawing.通过交替的冻结 、 抽空和溶化来使溶液除气.Fir...
Providing they do not panic, I believe that their chances of survival will be beyond 95 per cent.如果他们不慌乱，我相信他们生还的概率将在95%以上。There is a thin dividing line between educating the public and creating a predisposition to panic...