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LR (psychological, physiological, technical, risk-benefit assessment) -…
LR
psychological
long duration
isolation
sound blank
长期处在封闭环境
physiological
no day-night switch
zero gravity
adverse effect
solution
radiation exposure
adverse effect
solution
technical
duration
fuel consumption
launch window
orbit
找到低推力轨道
risk-benefit assessment
make the investment justifiable
the value behind the mission?
scientific benefit
对火星对太阳系对行星演化的了解？
resources benefit
矿产
aerospace experience
深空探索，地外探索 经验积累？