“synchronous timing”的概念、定义、翻译、参考文献-科学参考

单词	synchronous timing
释义	synchronous timing [`siŋ·krǝ·nǝs `tīm·iŋ] ^METALLURGY Regulating the welding-transformer primary current in spot, seam, or projection welding so that the following conditions prevail: the first half-cycle is initiated at the proper time in relation to the voltage to ensure a balanced current wave, each succeeding half-cycle is essentially the same as the first, and the last half-cycle is of the opposite polarity to the first.
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