And although Asimov's "positronic" brains do not exist, positrons are indeed used to probe human brains in positron-emission tomography (PET) scanning.
虽然阿西莫夫虚构的“正电子”大脑并不存在，但是正电子理论确确实实被应用于正电子衍射成像(PET)扫描技术上用来探索人类大脑。
Technically, the U.S. Food and Drug Administration is responsible for ensuring that pet foods, like human foods, are safe to eat, truthfully labeled and produced under sanitary conditions.
从技术上而言，美国食品与药品管理局（FDA）对宠物食品负责，确保它们要像人类食品一样，要能安全食用，如实地贴上标签，并且要在卫生的条件下被生产出来。
Wild lizards, birds and monkeys share the plot with its human inhabitants, providing for a very different experience than your standard house pet.
野生蜥蜴，鸟儿和猴子和这里的居民共同生活，这和你家里的宠物可是不同的哦。
Doing without such a pet, and then sending the money saved to a relief organization would mean saving a life - over the years, several human lives.
不养宠物，然后把节省下来的钱捐给救援组织将意味着拯救一条生命——几年后，就能拯救几条生命。
"It's approaching the level you see for human care, compared with the days when you took your (sick) pet to the farm and then you never saw them again, " Gerds said.
想当年，你会把病入膏肓的宠物送到宠物收留所，然后便再也见不到它们了；
You finally have the chance to understand what your pet is saying thanks to a smart collar that can interpret feline meows and translate it into human speech.
托智能项圈的福，你们终于有机会听懂自己的宠物在说什么了。
The products were rated by level of concern from low to high, depending on how much lead, mercury, arsenic or other chemicals known to be hazardous to human and pet health were detected.
这些产品按人们担忧程度从低到高分了等级，分级标准是基于检测出的铅、汞、砷，或者其他所知对人体和宠物健康有害的化学成分的含量。
As evidence, pet cemeteries exist where the last remains of loyal and loving pets have been interred with a measure of dignity and respect equal to that accorded to human relatives and friends.
证据是，有人为宠物修建墓地，埋藏他们忠实的、亲爱的宠物的遗骨，这些宠物就和人的亲友们一样获得尊重和敬意。
The agency has also found melamine in pet food containing rice protein concentrate, and recently began testing animal feed and human-food additives for melamine contamination.
最近，监督局开始对动物喂养和人类食物中的添加剂做三聚氰胺污染的实验。
Our dog fashion is all designed by famous designers who are pet lovers and experienced in human fashion.
我们宠物服装全部由知名设计师来设计，他们都是宠物爱好者，同时也是具有丰富的设计经验及时尚触觉。
The Scheeles are particularly devoted pet owners. They feed their dogs human food, brush the dogs' teeth and dress them in raincoats when it's wet outside.
撤尔夫妇是一对十分深爱宠物的养主，他们用人类吃的食物喂养狗，帮它刷牙，遇到外面下雨就帮狗穿上雨衣。
You finally have the chance to understand what your pet is saying thanks to a smart collar that can interpret feline 1 meows and translate it into human speech.
托智能项圈的福，你们终于有机会听懂自己的宠物在说什么了。
You finally have the chance to understand what your pet is saying thanks to a smart collar that can interpret feline 1 meows and translate it into human speech.
托智能项圈的福，你们终于有机会听懂自己的宠物在说什么了。
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