The log-period dipole array is applied as a feed element for a back-fire antenna.
用对数周期振子阵作为背射天线的馈源。
Even the popular boy wizard Harry Potter has to battle a deadly dragon and get back a golden egg from its nest in "Harry Potter and the Goblet of Fire".
甚至在著名的小说《哈里·波特和火焰杯》里，小巫师哈里·波特也要打败一条凶恶的龙，从它的巢穴里抢回金蛋。
The Belgians fell back as the infantry came under fire.
比利时人在步兵部队遭到炮火袭击时撤退了。
Back at camp we follow the same routine from yesterday: bath and sit around the fire.
回到营地后我重复了昨天的例行公事：先洗澡然后坐在火边。
"Mr.Reid says a tree gives back something for everything you do for it." my younger son remarked one evening as we sat before a blazing fire. "He says we must never waste anything a tree gives us." I.
一天晚上，我们坐在烧的正旺的火炉边，我的小儿子说：“里德先生说，你为树做的每一件事，它都会给你一些回报。”
We're falling back! Covering fire!
我们要撤了，掩护射击！
Gently, very gently, he took her arm and led her back to the hearth and the blazing fire.
轻轻的，非常的轻，他抓住了她的手臂，将她引向壁炉和那熊熊火焰。
The charcoal history of fire in the giant sequoia groves extends back more than 8,000 years.
木炭记录的巨杉林火灾历史可以再向前追溯8000多年。
Tomorrow evening when the enemy arrives, abandon camp. At the fire signal, turn back upon them.
来日黄昏，敌军必到，主公便弃营而走；但见火起，即回军掩杀。
So I went back down to cut the electricity in fear of a fire starting.
我担心会着火，赶紧回楼下切断了电源。
After a long hike, they went back to their camp, built a fire and cooked dinner.
长途跋涉后，他们回到营地，生了一堆火，做了晚饭。
The crowd fell back to let the fire engine through.
人群向后退去，以便给消防车让路。
Before he came back home from his work of an evening, she would arrange his arm-chair and woollen slippers before the fire with her own hands.
在他夜晚下班回来以前，她就亲手把他的扶手椅子和毛绒拖鞋放在炉火前面。
Take yourself back to the beginning, and allow yourself to feel the original fire you felt for this goal.
让你自己回到起点，并允许你自己去感受为这个目标所燃起的原始火焰。
He lolled back in his chair by the fire.
他懒洋洋地靠着椅背坐在炉火边。
The local fire department blocked the road with fire trucks and turned back motorists.
当地消防局用消防车把路挡住，让过往的车辆掉头返回。
So think back to those fire-safety lessons you learned in grade school.
所以回忆下上小学时候学的消防安全课。
We moved back and forth between her bedside and the fire-lit den, holding her hand and talking to her, telling old stories and laughing and crying as simply as children.
我们在她和燃烧的炉火旁来回走动，握着她的手，跟她说话，给她讲老故事，笑着，哭着，就像单纯的孩子。
Police in full force on horseback and on foot kept the crowd back, while all the fire brigades in Berlin poured water on to the flames.
警方动用骑警和人墙全力控制人群，同时，柏林所有的消防队都投入了灭火工作。
I was playing with fire here when I asked her, what it was about me that she disliked or liked? I knew I was not going to like the answers I got back but I had to ask anyway.
我知道这样做是在玩火，不过我还是问，她喜欢我和不喜欢我哪些地方？
A Harvard anthropologist has proposed that using fire to cook food could be dated back to almost two million years and that it could explain hominid features like having a large brain and small teeth.
哈佛大学的一位人类学家提出，用火做饭可以追溯到近200万年前，这可以解释人类的一些特征，比如大脑大，牙齿小。
Deciding the trees would give better cover, they extinguished their fire, then clambered back up the incline, their voices fading away.
决定树荫下更隐蔽后，他们便把火熄灭了，往坡上爬去，说话声渐渐减弱，听不见了。
A second possibility, for more power-hungry devices, is to fire a finely focused infrared laser beam at a photovoltaic cell, which converts the beam back to electrical energy.
第二种可能性则能应用在更加耗电的设备上。其原理是发射一道精确聚焦的红外激光线，击中光伏电池，由此能够将光束转换回电能。
How sure would he need to be about the identity of an attacker to "fire back"?
为确定攻击者身份并“反击”，他需要多大把握？
But the fire could not keep back the policemen.
但火焰不能阻挡警察们的步伐。
If I do want a shot with the background dark simply move the dial back to "p" mode and fire away. Nothing else needs to be adjusted.
如果我想要拍摄背景暗下来，只要把拍摄模式转盘转到P程序模式拍照就可以了，不需要其他任何改动。
I want to know if you will stand in the center of the fire with me and not shrink back.
我想知道的是你是否愿意与我一道，站在烈火中央而不退缩。
Her head and back felt on fire.
她的头和背感到火烧火燎的。
Her head and back felt on fire.
她的头和背感到火烧火燎的。
应用推荐