The reactions of fish to AC can be distinguished into four stages: electrifying, electrotaxis, electronarcosis and electrocuting.鱼对交流电的反应可分成四个阶段: 感电 、 定向 、 麻醉和击昏反应....
'Yes, Mum,' replied Cheryl as she slowly put away her doll...“是的，妈妈。”谢里尔一边慢慢地收起布娃娃一边回答。We do not wish her to grow up dumb like the average doll.我们不希望她变得像木偶一样头脑简单。Sir Richard Doll, the epidemiologist who discove...
Actually, these selection rules are not ironclad.实际上, 这些选择规则并不是严格的.That is an ironclad fact that is beyond controversy.这是铁的事实,无庸置辩.an ironclad contract不可动摇的契约The case for testing now is ironclad.正在接受检验的这一论据牢不可破。...ironcl...
The officer was militarily severe, the soldier obedient.这个军官是军纪森严, 这个士兵则唯命是从.It has few illusions that China can compete head - on with the Americans militarily.它并不指望自己能和美军针逢相对.China is unlikely, of course, to attack Tai...
It was a rude awakening to learn after I left home that I wasn't so special anymore.离家后我才猛然意识到自己不再有什么特别。Mass movements are often a factor in the awakening and renovation of stagnant societies.群众性运动经常是能唤醒和振兴停滞不前的社会的一...