有风险的塑料制品种类繁多，令人眼花缭乱：早期的收音机、先锋派雕塑、迪士尼电影公司的动画电影剧照、第一颗人造心脏等。
The variety of plastic objects at risk is dizzying: early radios, avant-garde sculptures, celluloid animation stills from Disney films, the first artificial heart.
它延续了1961年由奥斯卡计划开始的行动。奥斯卡计划是一个总部设在美国的组织，在人造卫星“斯普特尼克”之后仅四年就制造并发射了第一颗非政府卫星。
It continued the efforts, begun in 1961, by Project OSCAR—a US-based group that built and launched the very first nongovernmental satellite just four years after Sputnik.
它是中国第一颗人造太空卫星。
第一颗豌豆在长时间飞行后掉到了地上，被一只母鸡吃掉了。
The first pea fell onto the ground after a long flight and was eaten by a hen.
第一颗豌豆想在天空中飞翔，第二颗豌豆的愿望是在海里游泳。
The first pea wanted to fly in the sky, and the second one's wish was to swim in the sea.
在他的领导下，世界上第一颗量子通讯卫星于2016年8月被成功发射。
Under his leadership, the world's first quantum satellite was launched successfully in August 2016.
近年来，我国发射了世界上第一颗量子卫星，嫦娥四号实现了月球软着陆。
In recent years, our country has sent up the world's first quantum satellite, and Chang'e-4 has made a soft landing on the moon.
中国第一颗人造卫星“东方红一号”使中国成为第五个独立发射卫星的国家。
China's first man-made satellite Dongfanghong 1 made China the fifth country to send a satellite independently.
一种是具有务农者特色的：他们将献上春天里收获的第一颗大麦粒。
One would be characteristic of agriculturalists: it would be an offering of the very first barley that would be harvested in the spring by them.
美国在1958年发射其第一颗人造卫星。
1992年，科学家发现了第一颗太阳系之外的行星。
伊朗在2005年利用俄罗斯火箭发射第一颗商业卫星。
Iran launched its first commercial satellite in 2005 on a Russian rocket.
第一颗种在浓密的树林当中，而另外一颗则单独种在一座山上。
Plant the first in the middle of a dense forest, and the other on a hill by itself.
第一颗种在浓密的树林当中，而另外一颗则单独种在一座山上。
Plant the first in the middle of a dense forest, and the other on a hill by itself. Here's what will happen.
第一颗目标恒星是武仙星群中一颗称为GD358的白矮星。
The primary target is a White Dwarf star known as GD358 in the constellation Hercules.
19世纪80年代，她推动了使用第一颗卫星从太空来研究热带降水。
In the 1980s, she became the driving force behind the first satellite mission to study tropical rainfall from space.
去年九月份宣布发现它时，大家把葛利斯581视作第一颗可能孕育生命的星球。
When it was announced last September, Gliese 581g was heralded as the first known planet that could harbor alien life.
另一种是具有务农者特色的，他们献上的是春天里收获的第一颗大麦粒。
The other would be characteristic of agriculturalists: it would be an offering of the very first barley that would be harvested in the spring.
自第一颗人造卫星史泼尼克发射以来，火箭推进剂在超过50年的时间内变化不多。
Rocket propellant has barely changed in the more than 50 years since the launch of the first artificial satellite Sputnik.
“我们伟大的科学家成功地将伊朗第一颗图象收集卫星送入轨道，”电视台报道说。
"Our glorious scientists successfully put Iran's first image-collecting satellite into orbit," the TV report said.
在我访问莱蒙山时，他在指给我们看当晚发现的第一颗近地天体时，向我们做出吹喇叭的样子。
During my visit to Mount Lemmon, he made a trumpeting noise just before he pointed out the first NEO to us.
那是20世纪40年代，这个地区发起了钻石开采业，第一颗俄罗斯的钻石就是在这里被发现的。
The first Russian diamond was found right in this region and in 1940s the industry was launched.
无论宝宝的第一颗小牙何时冒尖，最好当下给他拍照留念，并在宝宝日志里记录好小牙到来的时间。
Whenever the first tooth peeks through, celebrate it by taking pictures and noting its arrival date in your child's baby book.
好像从他们长子长第一颗牙开始到他们最小儿子的毕业典礼，他们之间不再有任何联系似的。
It seemed as if somewhere between the oldest son's first tooth and the youngest son's graduation they had lost each other.
我觉得当十五年前发现第一颗时我是非常幸运的，因为我们只搜寻了56个小时就找到了它。
I thought I was lucky when I found my first one 15 years ago because we were only doing that for 56 hours when we caught our first one.
那家最小的孩子随时都可能掉第一颗牙，如果妈妈飞不动了，安娜必须拿着银币去做这次交易。
Any day the smallest child in that family would lose its first tooth. If her mother couldn't fly, it would be up to Anna to take the coin and make the Exchange.
美国的主要竞争对手，苏联，不但是成功发射第一颗卫星，别且也是第一个载人航天成功的国家。
America's arch rival, the Soviet Union, had launched not only the first satellite into orbit, but the first person as well.
如果到时候他的第一颗牙还没长出来的话，跟你的医生谈谈，他会让你知道到时候有没有必要去看牙医。
If he hasn't sprouted his first tooth by then, talk to your doctor, who can let you know whether or not a visit to the dentist is necessary.
HD 209458 b则是第一颗被发现的蒸发行星，又名osiris，它可能正逐渐转变成为一颗幽冥行星。
The first evaporating planet discovered, HD209458b, nicknamed Osiris, might be on its way to becoming a chthonian planet.
HD 209458 b则是第一颗被发现的蒸发行星，又名osiris，它可能正逐渐转变成为一颗幽冥行星。
The first evaporating planet discovered, HD209458b, nicknamed Osiris, might be on its way to becoming a chthonian planet.
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