问题
填空题
蒸汽机是利用压力蒸汽,使热能转变为()以便带动各执行机构,完成吊运的任务。
答案
参考答案:机械运动
蒸汽机是利用压力蒸汽,使热能转变为()以便带动各执行机构,完成吊运的任务。
参考答案:机械运动
完形填空。 | ||||
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