at least as effective as 如何理解？（关于电气标准）？ 好像英语也不是很通顺。按照句子，a site 是主语，是动作的发出者，但不明白为什么site能够broaden,......standard? 我觉的原文应该改为。 at a site, corporation elecrical safety standard (cesd) may be broadened, modified or a rule different from cesd can be set up, but only if the changes are as equivalent as cesd effects 或者是 a site may be boradened, modified or different from corporation eletrical safety standard, but only if the change is at least as effective as the standard. 两句话的意思各不相同，本人趋于第一种说法。查看更多
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