它(下投式探空仪)不是由气球载入高空，而是由高空投掷下来并靠降落伞由空中飘浮下降。
Instead of being borne aloft by a balloon, it is dropped from a high-altitude and floats down on a parachute.
它(下投式探空仪)不是由气球载入高空，而是由高空投掷下来并靠降落伞由空中飘浮下降。
Instead of being borne aloft by a balloon, it is dropped from a high-altitude and floats down on a parachute.
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