ro·ta·tive /ˈroˌtetɪv ||roˈ/
(a.)迴轉的,循環的
Ro·ta·tive a. turning, as a wheel; rotary; rotational.
This high rotative velocity of the sun must cause an equatorial rise of the solar atmosphere. --Siemens.
Rotative engine, a steam engine in which the reciprocating motion of the piston is transformed into a continuous rotary motion, as by means of a connecting rod, a working beam and crank, or an oscillating cylinder.
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