be all abroad
3.how can anyone possibly undertake to prove by arguments only based on the mere theory of values, that a nation ought to buy its goods like individual merchants, at places where they are to be had the cheapest -- that we act foolishly if we manufacture anything at all which can be got cheaper from abroad --that we ought to place the industry of the nation at the mercy of the self-interest of individuals -- that protective duties constitute monopolies, which are granted to the individual home manufacturers at the expense of the nation?
5.This paper simply describes the development of ADSS(All Dielectric Self supporting) aerial cable in China and abroad, discusses the circumstance of ADSS cable during installing and operating, when it would be subject to vibration, ice and wind. In the paper some design calculation formula and the measurements using various test methods are provided.
6.Abstract: In the paper,the state-of-art of stealth technology is firstly analyzed briefly.It is pointed out that infrared stealth,audio stealth,visual stealth and other stealth technology ought to be developed rapidly besides radar stealth.Then,the status of research and application development of stealth technology abroad is introduced.At last,the thesis points out that the features such as wide band,all directional,all-weather,intelligentialized stealth technology and stealgh weapons represent the general trend of stealth development.
