海军官员说，印度海军正在寻找一种双引擎直升机，以提高其飞越海域的生存能力，并希望飞机能完全集成先进的航空电子设备。
The Navy is looking for a twin-engined helicopter to improve survivability while flying over maritime areas, and wants fully integrated advanced avionics.
本文提出一种能在毫米波很好工作的三端半导体器件—异质结势垒控制飞的电子晶体管（简称势垒飞越晶体管）。
The heterojunction barrier controlled ballistic electron transistor-a novel three terminal semiconductor device which could be operated competently at millimeter wavelength frequency is proposed.
本文提出一种能在毫米波很好工作的三端半导体器件—异质结势垒控制飞的电子晶体管（简称势垒飞越晶体管）。
The heterojunction barrier controlled ballistic electron transistor-a novel three terminal semiconductor device which could be operated competently at millimeter wavelength frequency is proposed.
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