单词	universal dial
释义	universal dial noun : a sundial with an adjustable gnomon by which the hour may be found in any part of the world or under any elevation of the pole Word History First Known Use circa 1582, in the meaning defined above
随便看	meccans meccas mech mechan- mechanic mechanic art mechanical mechanical advantage mechanical analysis mechanical aptitude mechanical art mechanical bank mechanical binding mechanical construction mechanical drawing mechanical engineer mechanical engineering mechanical mixture mechanical pencil mechanical property mechanical ratio mechanical refrigeration mechanical test mechanical tissue mechanical ventilation

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