This paper refers to the concept of clean production and its back-ground and origin.
介绍清洁生产的概念及其产生的背景。
Ulysses' main transmitter no longer works and its back-up systems are also beginning to fail.
尤里西斯的主传送机已经坏了，后备系统也开始出问题。
To explore the neural connection pathway between the kidney and its back shu and front mu points.
目的：探求肾与其俞募穴之间的神经联系通路。
The throne had six steps, and its back had a rounded top. On both sides of the seat were armrests, with a lion standing beside each of them.
宝座有六层台阶，座的后背是圆的，两旁有扶手，靠近扶手有两个狮子站立。
In Lycidas, Milton looks back at the elder brother's theodicy, and it's almost as if he's attempting to test its validity.
在《黎西达斯》中，弥尔顿回顾了他哥哥的神正论，他似乎在尝试验证它的正确性。
The cat arched its back and hissed.
猫弓起背发出嘶嘶声。
A New Jersey black bear that walks upright on its two back legs and has become a social media darling has re-emerged and has been captured on video months after its last sighting.
一头用两条后腿直立行走的新泽西州的黑熊已经成为社交媒体的宠儿，距离上次被目击的几个月后，它再次出现并被拍了视频。
If it's going to navigate, it needs those sounds to be broadcast and bounced back from objects in its path.
如果它要导航，它需要播放这些声音，并让声音被路径上的物体反弹回来。
The bird, delighted with its liberty, rose, flew away and did not come back.
小鸟为自己获得自由而高兴，它站了起来，飞走了，再也没有回来。
The duck came to them, and Hansel seated himself on its back, and told his sister to sit by him.
鸭子走过来，汉塞尔坐在它的背上，让他妹妹坐在他旁边。
Here's what hard science reveals about eye contact: We know that a typical infant will instinctively gaze into its mother's eyes, and she will look back.
以下是自然科学对眼神交流的揭示：我们知道，一个典型的婴儿会本能地凝视母亲的眼睛，而母亲也会回以注视。
Yet its report may well set back reform by obscuring the depth and breadth of the challenge that Congress asked it to illuminate.
然而它发布的报告很可能会阻碍改革的步伐，因为国会要求它阐明挑战的深度和广度，而这一点却并没有被阐述清楚。
By 2012, this period of chastisement will likely have run its course, and future-mindedness will be back in vogue, for better or worse.
到2012年，这一时期的惩罚可能会走到尽头，无论好坏，未来观念都将重新流行起来。
When conditions are hot, the ostrich erects them on its back, thus increasing the thickness of the barrier between solar radiation and the skin.
当天气炎热时，鸵鸟会把它们背在背上，这样就增加了太阳辐射与皮肤之间的屏障厚度。
It has the face of Kumamon on its front and back.
它的正面和背面都有熊本熊的面孔。
The youngster immediately jumps onto its mother's back and they travel off together.
小家伙立即跳到它母亲的背上，它们一起走了。
The earth needs 24 hours to turn round once and get back to its starting place with the sun.
地球需要24小时才能转一圈，回到相对于太阳的起始位置。
Jazz was in its heyday back then, and when she got out of the conservatory, she was invited to join a jazz orchestra.
那时爵士乐正处于鼎盛时期，她从音乐学院毕业时，受邀加入了一个爵士乐团。
"I'm going to set it down, now," I said, and with Jason helping to support its weight, I bent back over the table to give it somewhere to rest.
“现在我要把它放下来了，”我说，詹森帮我支撑它的重量，我向后弯腰，打算在桌子上找个地方放下。
Before letting its leaves go, the tree dismantles their chlorophyll molecules and ships their valuable nitrogen back into the twigs.
在树叶凋落之前，树会分解叶绿素分子，把有用的氮运回树枝中。
A company representative wrote back and told me the airline was switching over the plastic to paper cups on all of its 1,200 daily flights.
一位公司代表回信告诉我，该航空公司将把每天1200个航班的塑料杯换成纸杯。
It includes four steps: seeing a word, getting back its meaning from your memory, connecting it to other words in the same sentence, and then moving on to the next word. This process uses many parts of the brain at one time.
它包括四个步骤：看到一个单词，回忆这个词的意思，将它与句子中其他单词联系起来，再看下一个单词。这个过程同时调动了大脑的很多部分进行工作。
They noted that each bird rubbed its cheek against its preen gland and then onto its neck, back and breast feathers.
他们注意到，每一只火烈鸟用脸摩擦尾羽，然后再将这种颜料抹在颈部，背部和胸部的羽毛上。
Messrs. Dolce and Gabbana decided to buy the D&G license back six years ago to improve its positioning.
早在六年前，杜嘉班纳就决定收购D&G ，以巩固其时尚界的地位。
For many years, I have been interested in healthy living and getting my body back into its natural state and how it should function.
多年来，我一直致力于健康的生活并使我的身体回复其应有的原始状态，发挥其原有的身体功能。
The coach, therefore, took them the first stage of their journey, and brought its master back to Longbourn.
动身的那天可以由这里打发一部马车把她送到第一站，然后趁便接主人回来。
Now back to HTML5 and its video element.
现在，再回过头谈HTML5和它的video标签。
Halfway up the hill, he saw an elephant coming down, with a small bundle of leaves on its back and a mahout poking its ear with an iron rod.
就在上到半山腰的时候，他看到了迎面走过来一头大象，大象背上背着一小捆树叶，旁边看象人拿一根小铁棒在拨弄着它的耳朵。
"It is... crucial to report climate change and its impact accurately and to back bold statements with concrete and correct evidence," they say.
“正确地报道气候变化及其影响并支持拥有具体和正确证据的大胆说法是…很重要的，”他们说。
"It is... crucial to report climate change and its impact accurately and to back bold statements with concrete and correct evidence," they say.
“正确地报道气候变化及其影响并支持拥有具体和正确证据的大胆说法是…很重要的，”他们说。
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