Calibrate the refractometer with water and press the Zero button.

校准折射水，并按下零按钮。

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There is also a Reset button on the page that resets the counter to zero.

在这个页面还有一个 Reset 按钮能够将计数器的值重置为零。

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The Start TAB has a button to Discover, and a pie chart showing one operating system, zero systems with no agent, zero systems with Platform agent, and two systems with Common agent.

Start选项卡有一个到Discover的按钮、一个显示一个操作系统的饼状图、无代理的零系统、具有Platform代理的零系统和两个具有Common代理的系统。

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Being the filthy non-purists that we are, we're most excited by the camera's 720p video mode, which offers decently fast autofocus with a half press of the shutter button, and zero jelly vision to worry about.

ENGADGET: Panasonic Lumix DMC-GF1 hands-on, with 720p test footage!

The CrossBlue runs in zero emissions mode either at the press of a button or automatically.

ENGADGET: VW unveils CrossBlue plug-in SUV with iPad mini headrests and 85MPGe efficiency (eyes-on)