Simple actuators without this capability are a bit like manual transmission cars that need to be shifted into reverse.
接下來一年，麥肯齊將在劍橋的南極考察局總部工作，但他過去曾在南極過冬。「冬天來臨時，大多數人離開，你會感到一種難以形容的自由感。」他說。
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Jacob Panonsand
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