Electric arc discharge of the tips installed in BSP source produces intense ultraviolet ray emission with a spectrum continuously extended to the range of visible light.

针式火花预电离源利用热电弧发出强烈的紫外光，其发射光谱范围从可见光连续延伸到紫外。

youdao

It was found that the coherent length became shorter and the spectrum resolving power became lower as a result of solid Angle produced by the extended light source.

分析表明，扩展光源存在的立体角导致系统的相干长度变短，光谱分辨率降低。

youdao

In the 15 years since the end of the Cold War, the extended task spectrum of the Bundeswehr has included missions abroad.

冷战结束后15年间，联邦国防军的任务范围已经扩大为包括到国外执行任务。

youdao

Hong Kong, 22 May 2013 - 1O1O and one2free today announced the commercial launch of 4G LTE extended spectrum together with the pre-order of Hong Kong's first LTE CAT 4 device, bringing a superior 4G LTE mobile experience for customers in Hong Kong.

ENGADGET: Hong Kong's CSL preps network for LTE Cat 4, offers Huawei's 150 Mbps mobile hotspot (video)

So at the other end of the spectrum is a more modest intervention - perhaps an extended version of the air strikes that currently accompany the US and British policing of the no-fly zone, but with greater use of special forces to target suspected weapons depots and military installations.

BBC: Analysis: Selling an attack on Iraq