Design characteristics of intermittent gear mechanisms of action toys are introduced in tooth form, structure, material applying and manufacturing technology.

介绍了机动玩具中不完全齿轮机构在齿形、结构、材料应用和加工工艺方面的设计特点。

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The rest hail from the NBA, the other sports league where lots of intermittent breaks in the action lend themselves to mascot routines.

FORBES: America's Favorite Sports Mascots

After two days of intermittent service, Silk Road's administrators told users on Wednesday morning the site was back in action - but said they could not rule out further downtime.

BBC: Silk Road screenshot