A kind of ultra wideband (UWB) antenna, which consists of an arm-folded dipole antenna and a dielectric block, is proposed.

介绍了一种由折叠臂偶极天线和并联介质块组成的小型化超宽带天线。

youdao

We forecasted potential of gold mine resource in Wulaga Au geochemical block in the north of Jiamusi block by using the method of ultra-low density geochemical survey.

运用超低密度地球化学调查方法，对佳木斯地块北缘乌拉嘎金地球化学块体的金矿资源潜力进行了预测。

youdao

Shu1 area of Shuguang oilfield has abundant ultra heavy oil reserves and is an important production superseding block of Liaohe oilfield.

曙光油田曙一区超稠油储量丰富，是辽河油田重要的产能接替区块。

youdao

Block 34 is the fourth and last ultra-deep block on offer.

ECONOMIST: Angolan oil: Drilling down | The

These would be ultra sensitive, and would be able to tune in to sound from different directions, but have the ability to block out background noise not relevant to the conversation.

CNN: Phones will soon be able to smell