A generated technique of balanced light intensity and high efficiency multiple ban splitting beams element using synthetical phase gratings.

采用组合位相光栅技术，制作光强分布均匀、衍射效率较高的多光束分光元件。

youdao

This is the second Spring Festival permitting Beijing residents to light fireworks within the Fifth Ring Road of the city after a 12-year ban was lifted in December 2005.

这是经过了12年的禁令之后，居住在5环以内的北京市民自2005年以来第二次允许在春节期间燃放鞭炮。

youdao

To reveal the pattern the amount of drivers' memory of traffic sign information changes over time could shed bright light on the design and installation of ur-ban road traffic signs.

研究驾驶人交通标志信息记忆量随时间的变化规律，能够为城市道路交通标志设计及实施应用提供有力支撑。

youdao

Tucked into the giant 1, 200-page omnibus spending bill passed by Congress Thursday night is a provision that prevents the government from spending any money to enforce the light bulb ban.

FORBES: Congress Kills Light Bulb Ban - Sort Of

In that light, the ban on pseudonyms makes sense.

FORBES: Will Google+ Die the Death of a Thousand Pseudonyms?

He also called on Congress to ban incandescent light bulbs and require better gas mileage for cars.

NPR: Al Gore Testifies Before Congress on Global Warming