A new backfire antenna fed by a bifilar backfire belix is described in this Paper.本文提出一种用双线背射螺旋作馈源的新式背射天线.Loads distort every component of the structure of the Cassegrain antenna system.载荷使卡塞格伦天线结构的每个部分发生变形.The microstri...
The chromatin remodeling and histone acetylation were associated with transcription activation.真核基因活化与染色质的重建及组蛋白的乙酰化相关.In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,...
朋友们传话说矿工们想见他。Friends passed the word that the miners wanted to see him.虽然朋友们明确反对，她还是坚持己见。She persevered in her idea despite obvious objections raised by friends.他的朋友们说，以前他讲笑话总是张嘴就来。His friends say he was always quick to ...
Three ships foundered in heavy seas.三艘船在波涛汹涌的海面上沉没了。The project foundered as a result of lack of finance.该项目因缺乏资金而告吹.The mare foundered under the heavy load and collapsed in the road.那母马因负载过重而倒在路上....
She engaged herself to repay her debt within two months.她答应在两个月内偿还她的债务。It will take 30 years to repay the loan...还清贷款需要30年的时间。He was so good to me that I can never repay the debt I owe him...他对我太好了，我永远也还不清这份人情。They agree...
...Malthus's theories about the ineluctable tendency of populations to exceed resources.马尔萨斯的人口增长会不可避免地超出资源承载限度的理论Will Malthus Continue to Be Wrong?马尔萨斯会一直错下去 吗 ?...Thomas Malthus's essay on population.托马斯·马尔萨斯...
A [ Nenets ] herder relies on the instincts of his lead reindeer.( 涅涅茨 )牧人需要依赖于他的领头驯鹿的本能.The gauge relies upon a sensor in the tank to relay the fuel level.油表靠油箱里的感应器来显示燃料的液位。The town relies on the seasonal tourist indus...