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1·Inform vessels in vicinity about number of persons remaining on board.

告知附近的船在船上还剩多少人。

2·The impact flash may have been caused by the thermal emission from the impact itself or by the release of spacecraft volatiles, such as the small amount of hydrazine fuel remaining on board.

撞击的闪光可能来自撞击本身产生的热喷发，也可能是飞船上的挥发物，如剩余的少量肼燃料。

3·During project construction, the remaining roots of trees and remaining board of ground beams should be cleaned up. For those can not be dismantled, pesticide should be applied on them.

工程建设期间，对地下遗留树根、地梁的残留木板等进行清理，对无法拆除的应进行药剂处理；