A number of vertical line sources was generally caused by catalytic agents, dispersed from falling pyrotechnical flares of an airplane or a rocket.
下投式飞机和火箭焰弹分散的催化剂一般都形成若干条垂直线源。
A number of vertical line sources was generally caused by catalytic agents, dispersed from falling pyrotechnical flares of an airplane or a rocket.
下投式飞机和火箭焰弹分散的催化剂一般都形成若干条垂直线源。
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