More than 40 countries and regions in the world belong to selenium-deficient areas.

全世界有四十多个国家和地区属于缺硒地区。

The demand for selenium in the electronics industry is decreasing.

电子业对硒的需求正在减少。

Selenium is an essential micronutrient for human body.

硒是人体必需的微量矿物质营养素。

Selenium is a chemical element used in photocells and photographic devices.

硒是一种用于光电池和照相装置的化学元素

Packed with protein, zinc, magnesium, and selenium, pumpkinseeds help protect against depression and heart disease.

南瓜籽富含蛋白质，锌，镁和硒，有助于预防抑郁症和心脏病。

Taking selenium supplements may help.

吃硒补充剂可能有所帮助。

Testing an Ajax application with selenium.

利用Selenium测试ajax应用程序。

Selenium: a test tool for Web applications.

Selenium：一个针对Web应用程序的测试工具。

Running Web-based functional tests with selenium.

用Selenium运行基于Web的功能测试。