关于这张图
This illustration depicts the interior of a sample tube being carried aboard the Mars 2020 Perseverance rover. About the size and shape of a standard lab test tube, the 43 sample tubes headed to Mars must be lightweight, hardy enough to survive the demands of the round trip, and so clean that future scientists will be confident that what they are analyzing is 100% Mars, without Earthly contaminants. Cutaway Plunger: Works in concert with the spring to release (retract) or activate (extend) the two exterior-mounted ball locks. Springs: Along with the plunger, acts to release or activ…
