commutate
动词 v.
英文释义
动词 v.
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To reverse the direction of (a current).
— Continuously rated machines shall be required to commutate successfully momentary loads of 150% of the Amperes corresponding to the continuous rating keeping the rheostat set for rated load excitation.
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To convert from being or using an alternating current into being or using a direct current.
— In line commutation, advantage of the a.c. supply going through zero value at every half-cycle is taken to commutate the thyristor.
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To commute; to be invariant under a reversal of the positions of operands.
— The match of two finite line segments in 2 dimensions requires 2 translations, 1 rotation, 1 scale transformation; the order is here important, and these operators cannot commutate.
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To commute; to change one kind of payment into another, especially to convert from several installments to a single lumpsum payment.
— Ah, commutation. I knew there was something else. This is where you can commutate your weekly payments into a lump sum and be rid of the “system”.
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To remove or reduce the legal obligations or restrictions on
— Specifically, the seminary was challenged by industrial millers who petitioned to build steam-powered mills and by large Montreal property holders who demanded that the crown commutate their lands.
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To transform, especially into a reversed or opposite form.
— Writers change the URIs as they compose because writers commutate and manipulate language to create a variety of rhetorical experiences that can be read at once, as overlapping, or as separate.
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词源
Back-formation from commutation (in the late 19th century), as is commutator (noun) too.
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数据来源: Wiktionary