在光合作用时，要发生两个“半反应”。
半衰期实际上是,一半反应物消失的时间。
So, the half-life is just the time that it takes for half of the reactants to disappear.
每个半反应都与相应电极上的界面电势差相呼应。
Each half reaction responds to the interfacial potential at the corresponding electrode.
与化学镀的原理类似，苯胺的无电聚合反应过程包含阴极半反应和阳极半反应两个电化学反应。
Similar to the mechanism of electroless plating, electroless polymerization of aniline involves local and spontaneous electrochemical reactions on the only substrate.
与化学镀的原理类似，苯胺的无电聚合反应过程包含阴极半反应和阳极半反应两个电化学反应。
Similar to the mechanism of electroless plating, electroless polymerization of aniline involves local and spontaneous electrochemical reactions on the o…
然后在第二个半反应里，电子和氢离子与二氧化碳结合生成能量丰富的碳水化合物，像葡萄糖，用于植物生长。
Then, in the second half-reaction, the electrons and hydrogen ions combine with carbon dioxide to create energy-rich carbohydrates, such as glucose, which plants use to grow.
当人们有一个他们认为已经解决的争辩时，他们的情绪反应是那些回避争辩的人的一半。
When people had an argument that they considered resolved, they had half the reactivity of those who avoided an argument.
人造机器把鸟锯成两半，这种观点激发了人类的本能反应；而捕食者口中含着的猎物这一观点，我们会视之为自然的本性。
"The idea of a man-made machine chopping a bird in half creates a visceral reaction," he said, "while the idea of a predator with its prey in its mouth - well we've seen that on the Nature Channel."
人造机器把鸟锯成两半，这种观点激发了人类的本能反应；而捕食者口中含着的猎物这一观点，我们会视之为自然的本性。
“The idea of a man-made machine chopping a bird in half creates a visceral reaction, ” he said, “while the idea of a predator with its prey in its mouth — well we’ve seen that on the Nature Channel.
当自愿(至少半自愿)进行康复治疗时病人往往有更好的反应。
Patients tend to respond better when rehab is voluntary (or at least semi-voluntary).
为了大范围了解身体对节奏变化反应，他们召集了24名志愿者——一半是有经验的歌手，其余的没有经过音乐训练。
To extend this knowledge to the body's response to changing rhythms, they enlisted 24 volunteers-half experienced singers, the remainder with no musical training.
电厂的管理者已经在正午之前，要求关闭了所有的冷却塔(包括损坏的和未损坏的)，并将电厂的电力供应下调一半，以此避免对核反应堆造成任何损害。
By noon, the owners had shut down both the damaged and undamaged cooling towers and had cut the plant's electricity output in half to avoid any harm to the reactor.
最近几个月来，日本52座核反应堆当中，有超过一半停机，导致日本电力短缺。
More than half of Japan's 52 nuclear reactors were offline, in recent months, leading to shortages of electricity.
在那次事故中，有一半核反应堆芯在事故发生后的两小时内便融化了，直到工作人员将误关的应急冷却系统开关重新打开，反应堆芯才停止了融化。
There, half the reactor core melted in the first two hours of the accident. The melting stopped when an operator turned on emergency cooling, which had mistakenly been turned off.
缺乏情感上的化学反应，或者说，对另一半“没有感觉了”，已经超过了“欺骗”，成为导致英国离婚的首要原因。
The lack of emotional chemistry - or ‘falling out of love’ with their partner - has surpassed cheating as the leading cause of divorce in the country.
你可以尝试使用某网站的数字地址，而不是它的网址(统一资源定位器)名称登录网站，你会发现反应时间会减少一半。
If you know it, try using the website's numerical address rather than its verbose URL (Universal Resource Locator) name. That can sometimes halve the response time.
典型锂离子电池中一半的材料在电池内部的化学反应方面起不到任何作用。
About half of a typical lithium-ion battery is made of stuff that plays no direct part in the battery's chemistry.
SAD患者可能对光线疗法有效，但是几乎一半的SAD患者对单用光线疗法无反应。
SAD may be effectively treated with light therapy, but nearly half of those with SAD do not respond to light therapy alone.
有近一半的时候，格拉斯哥昏迷评分法不能探查出深度昏迷的病人的意识。这些病人不是植物人，但无论如何也无法做出反应。
Nearly half the time, the GCS fails to detect the awareness of deep coma patients who are not vegetative, but who cannot respond in any way.
尼日尔是世界第五大铀生产国，但至今还没有建设出一个反应堆，因为光建造费用就超过其GDP的一半。
Niger may be the world's fifth-largest uranium producer, but the cost of building a reactor to make use of it would take up more than half the country's GDP.
艾臣格林说他们的论文在同行间引起两种截然不同的反应，“一半认为我们在解释为什么英国是一个特例上花了太多时间，另一半抱怨我们没有完全解释英国为什么特别。”
Half say we spend far too much time explaining why Britain is a special case. The other half complain that we don’t fully explain why Britain is different.
试想一下，我们的另一半从外面回来，可能因为工作不顺心无缘无故冲着我们就是这样大吵大嚷了起来，我们的第一反应也许是，你是你，我是我，你没有做对事情凭什么，要让我一道陪你背黑锅。
Say our other half comes home and yells at us about something inconsequential because they're stressed at work. Our first response is to take it personally and feel aggrieved.
39%的招聘经理说，能否与应聘者产生“化学反应”在其招聘决策中占有一半的作用。
39% say "chemistry" with a job applicant accounts for half of their hiring decision.
你的另一半讲了一个根本不搞笑的笑话，其他人没有马上就笑——看到他人没反应他还不知道该何时承认自己的笑话并不搞笑。
Nothing creates a false smile quicker than someone who tells jokes that seriously aren't at all funny – and doesn't know when to admit defeat when the crowd aren't responding.
我敢说我们接到的大概一半的电话都是这样的反应。
I would say about 50 percent of the calls we get are this type of call.
第一节课上的反应迟缓现象减少了将近一半，学生汇报说白天感觉不那么精神不振或烦躁了。休息时间去健康中心的也大幅减少；
First-period tardies fell by almost half, students reported feeling less depressed or irritated during the day, health center rest visits dropped substantially;
这些反应表明在这区域存在着将近一半的缺损。
These responses suggest a defect throughout the temporal half of the field.
这些反应表明在这区域存在着将近一半的缺损。
These responses suggest a defect throughout the temporal half of the field.
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