本船在长江航行时处于适航状态。
My vessel is in seaworthiness when navigating in Yangtze River.
适航性，有关气动能力、机械飞行能力、和合法性的飞机状态。
AIRWORTHINESS, the condition of the aircraft with respect to its aerodynamic, mechanical, and legal ability to fly.
适航性，有关气动能力、机械飞行能力、和合法性的飞机状态。
AIRWORTHINESS, the condition of the aircraft with respect to its aerodynamic, mechanical, and legal ability to fly.
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