原来白色的铅颜料已经氧化发黑了。
The original white lead pigments have oxidized and turned black.
无铅汽油每加仑涨了一个多便士。
阿科说20%的西岸司机要含铅汽油。
所有的新汽车都加无铅汽油。
这些渔网是靠铅坠下沉的。
他把自己的丰田车加满了普通无铅汽油。
所有其V8引擎将靠无铅汽油良好运转。
无铅汽油比柴油便宜。
当潜水员们走向海岸时，铅坠和氧气缸让他们步履维艰。
Lead weights and air cylinders encumbered the divers as they walked to the shore.
相同的现象估计也会发生在铝、铅和镍的身上。
The same phenomenon seems to be happening with aluminum, lead, and nickel.
许多科学家认为铅会在土壤和雪中停留更长的时间。
Many scientists had believed that the lead would stay in soil and snow for a longer period.
他们选取一个铅原子，将其加速，让它与镍的原子碰撞。
They take an atom of lead, accelerate it, and have it collide with an atom of nickel.
森林环境处理和重新分配铅元素的速度比科学家预期的要快。
The forest environment processed and redistributed the lead faster than the scientists had expected.
工业废料更有害，因为其中有许多毒性很强的材料，如铜和铅。
Industrial waste is even more harmful since there are many highly poisonous materials in it, such as copper and lead.
铅坚固且有弹性，所以是连接不同形状大小的玻璃碎片的理想材料。
Lead is strong and flexible so it's ideal for joining pieces of glasses cut in different shapes and sizes.
子弹将从冬季两项的射击目标上取出并回收，以防止铅污染地下水。
Bullets will be plucked from biathlon targets and recycled to keep the lead from poisoning ground water.
在格陵兰的雪中发现了大量的铅，其含量与在美国汽油中发现的相当。
The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.
国王要求一位名叫约翰·弗里德里希·伯特格的德国炼金术士用铅来炼金。
A German alchemist called Johann Friedrich Bottger was asked by the king to make gold out of lead.
几乎所有的视频显示器和电视都使用这种设备，每个设备都含有4到8磅的铅。
Used in almost all video monitors and televisions, those devices contain four to eight pounds of lead each.
我们将这些特征与锌或铅等特定元素的特征进行比较，以确定颜料是由什么构成的。
We compare these signatures with those of particular elements like zinc or lead, to determine what the pigment was made of.
中国的水泥消费量占全球一半以上，铁、煤、铅、锌、铝和猪肉使用量占全球近一半。
China accounts for more than half the world's consumption of cement, and nearly half its use of iron, coal, lead, zinc, aluminum and pigs.
它与我们面临的其他似乎永远存在的健康恐慌相比如何，比如人们在合成运动场上对铅的恐慌？
How does it compare with the other, seemingly perpetual health scares we confront, like panic over lead in synthetic athletic fields?
他把玻璃分层，用薄铜片代替铅，这让他对彩色玻璃做了这些非常复杂的华丽设计，用在灯罩上。
He layered pieces of glass and used thin copper strips instead of lead, which let him make these really intricate flowery designs for stained glass, which he used in lampshades.
在二十世纪六七十年代，铅沉积就在土壤和雪中不断累积，这主要是美国的含铅汽油排放的后果。
Lead deposits, which accumulated in soil and snow during the 1960s and '70s, were primarily the result of leaded gasoline emissions originating in the United States.
在《人类环境杂志》上发表的一项研究称，科学家们发现，自引进无铅汽油以来，美国东北部土壤中的铅含量已经显著下降。
In a study published in the journal Ambio, scientists found that lead levels in soil in the North-eastern United States had decreased markedly since the introduction of unleaded gasoline.
当秃鹰吃下其他体内含铅的动物尸体时，会吸收大量的铅。
When condors eat dead bodies of other animals containing lead, they absorb large quantities of lead.
我预测铀-铅年代测定法将会成为一种越来越流行的年代测定方法。
I'll predict that Uranium-Lead Dating is going to become an increasingly popular dating method.
因为有这种新的铀铅定年方法，我们才得以确定我们对大峡谷的一个主要假设是错误的。
Because of this, this new way of doing Uranium-Lead Dating, we've been able to determine that one of our major assumptions about the Grand Canyon was wrong.
在《清洁空气法案》强制要求美国使用无铅气体的二十年里，铅在世界范围内的累积量显著下降。
In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.
在这种情况下，铀铅定年法被用来确定样本中一半的砂岩是在阿巴拉契亚山脉花岗岩形成的同时形成的。
In this case, Uranium-Lead Dating was used to establish that half of the sandstone in the samples was formed at the same time the granite in the Appalachian Mountains was formed.
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