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it can lift them with ease and since there are no wheels是什么意

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it can lift them with ease and since there are no wheels是什么意思
and since
it can lift them with ease and since there are no wheels是什么意
Industry is already using one form of the invention to
deal with heavy loads. It can lift them with ease and since there are no
wheels, and therefore no friction, they can be put into motion with the
touch of a finger.
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原文如上,楼主您不能把它分开来让人解释.
前面有人解释过了,后面意思是因为没有轮子,所以也就没有摩擦,小小一根指头就能让它们动起来.