“It’s a double anti-whammy, ” he said.

利维森博士称这是一个双重反轰击防御系统。

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Dual passive infrared and microwave outside the double anti-pet detection, alarm capacity of 45kg.

双元外被动红外和微波双重探测技术防宠物，报警能力达到45 kg。

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Double side anti-static gelatine coating substrate; Used for producing printing film and movie film, etc.

双面涂布防静电明胶底层；用于生产印刷胶片、电影胶片等。

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Now the nice thing about this is that the degradation mechanisms seem to persist for some period of time, beyond the time at which you deliver the double stranded RNA; whereas, obviously, this mechanism here is only going to exist for as long as the anti-sense sequence is present.

而好消息是降解过程会持续一段时间,比你转入双链RNA的时间要长,但是,这种机制只会在,有反义链的时候发挥作用

耶鲁公开课 - 生物医学工程探索课程节选

Bimes said organisers of the four Grand Slam tournaments had decided to double their funding of anti-doping policies.

BBC: Tennis steps up war on drugs

However, because it uses a double suffix on the attachment filename, many anti-virus programs should be able to pick it out.

BBC: Virus makes unwelcome return

Voters in Arkansas, Georgia, Kentucky, Michigan, Mississippi, Montana, North Dakota, Ohio, Oklahoma, Oregon and Utah all approved anti-same-sex marriage amendments by double-digit margins.

CNN: Same-sex marriage bans?winning on state ballots