...、电子签名、电子认证、电子合同监管 [gap=8949]Key words: electronic contract; electronic signature; electronic attesting; electronic contract supervision ...
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electronic attesting
电子证明
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Electronic cigarettes, first sold outside China only over the past seven years or so, have few solid studies attesting to their benefits for helping smokers quit.
FORBES: The EU's New Tobacco Directive: Protecting Cigarette Markets, Killing Smokers
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