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.
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?
不是发现过银和铅的混生矿吗？
儿童对于铅的神经毒性影响特别脆弱。
Children are particularly vulnerable to the neurotoxic effects of lead.
这块铅的质量不会因为融化而改变。
而且一旦这些淤泥干燥后，铅的危害性将会更大。
铅的比热要低，只有0。03，这很低很低了。
把钋或者钍放在,开一个小口的含铅的盒子里面。
So, you've got polonium or thorium sitting inside this leaded box with one opening.
有时从旧管道流出来的饮水中也能发现铅的存在。
It's also sometimes found in drinking water after it flakes off from old pipes.
一项研究表明，自来水占人体所接触到的铅的20%。
In one study, tap water accounted for up to 20 percent of human exposure to lead.
我们有高速中子反应堆，那使用一个液态金属，以钠或者铅的形式。
We have fast reactors which use a liquid metal in the form of sodium or perhaps lead.
在很多城市，只要你不从地里挖吃的或种菜，铅的影响就微乎其微。
In many cities, leaded soil does little harm, unless you dig or plant food in it.
通缩则相反，它会加重债务负担，感觉就像盖着灌了铅的被子一般透不过气来。
Deflation, on the other hand, increases debt, and feels like being smothered by a lead blanket.
19世纪时铜的产量非常大，黄金、铁矿石、锌和铅的产量紧随其后。
Copper production was big in the 1800s. Gold, iron ore, zinc and lead followed.
事实上，周末我去餐馆吃中饭，点了鲈鱼，他们问我，是喜欢普通的还是无铅的。
In fact, when I went to lunch this weekend and ordered the sea bass, they asked if I wanted it regular or unleaded.
这只是建于1876年的一个老窑，这个窑炉是用来锻炼银子和铅的，今日已不再使用。
The kilns were used to process silver and lead ore and are no longer in operation today.
尽管它只占太阳总体积的2%，但其密度可达铅的16倍，并占有差不多一半的太阳质量。
Although it only makes up roughly 2 percent of the sun's volume, it is almost 15 times the density of lead and holds nearly half of the sun's mass.
英国地质调查局今年发表的一份报告声称，英国境内稀土金属的蕴藏量与铜，铅的储量一样丰富。
In a report on the elements published this year, the British Geological Survey put their natural abundance on the same level as copper or lead.
令人惊讶的是，钙的补充品中可能受到铅的污染，因为主要的钙补充品像海贝和牛骨都可能被污染。
Surprisingly, calcium supplements may be contaminated with lead, because the sources of calcium in supplements—like seashells or cow bones—are contaminated.
1920年：制造商和零售珠宝商尝试制造男式订婚戒指，但是这个想法却像灌了铅的气球一样很快销声匿迹。
1920s: Manufacturers and retail jewelers try to launch the concept of men's engagement rings, which sinks like a lead balloon.
我们所有不排放二氧化碳，不排放硫化物，不排放氮，不排放铅的电力，其中有百分之是七十来自核能发电。
Seventy percent of our carbon-free, sulfur-free, nitrogen-free, mercury-free electricity comes from nuclear plants.
工厂的大烟囱俯览著布满粉尘、蜿蜒经过挂著风干的玉米和红辣椒，他指著烟囱说，“我们并不了解铅的危害。”
He pointed to the smokestack overlooking the rutted dirt path winding past corn and red chili peppers hanging to dry. "We didn't have any awareness of what lead could do."
的确，锡已经取代了在焊接时会产生大量有害物质的铅的王者之位。 由于锡毒性较弱，它已在许多焊接过程中取代了铅。
Tin has replaced lead, which is more toxic, in a lot of soldering.
锇：是一种密度大的自然元素——其密度是铅的两倍——这种蓝灰色的金属在需要硬度和稳定性的应用领域大放异彩。
Osmium (Os) : The densest of natural elements-twice as dense as lead-this blue-grey metal finds a home in applications where hardness and durability are essential.
今年，镍和铅的可用库存量均已降至非常低的水平，这意味着，如果供应出现任何可能的中断，都可能对价格造成放大效应。
Both nickel and lead have seen available stocks shrink to critically low levels this year and this means that any possible disruption to supplies has had an amplified effect on prices.
而且一旦这些淤泥干燥后，铅的危害性将会更大。因为它会更容易混入粉尘中进入我们的呼吸道，由此引起呼吸困难甚至肺癌。
Once the sludge dries, the lead may be even more dangerous. If inhaled, the sludge dust can cause respiratory problems, even lung cancer.
在1912年夏天，HarryHoudini被拷在手铐和脚镣中，塞进一个灌铅的小木箱，然后从一艘拖船上被扔进纽约的东河中。
In THE summer of 1912 Harry Houdini was clapped in manacles and leg-irons, stuffed into a crate that had been weighed down by lead, and dropped from a tugboat into New York's East River.
在没有施加外力影响的情况下，铅的危害并不大。但是CELA解释说：“比如，在更新旧的窗户或者钻进墙壁中嵌入绝缘材料的时候，可能使房间受到铅尘的污染。”
The lead poses little threat if undisturbed but "replacing old windows or drilling into walls to blow in insulation, for example, can contaminate the house with lead dust," CELA said.
如果你的房子曾经刷过含铅的油漆，并且漆层还比较好，最好的方法是用新的不含铅的油漆覆盖旧的漆层，而不是去除老的含铅的漆层，因为这样做，铅尘反而排放到空气当中了。
If your old house has lead paint in good condition, cover it with fresh paint rather than removing it, which releases lead dust into the air.
如果你的房子曾经刷过含铅的油漆，并且漆层还比较好，最好的方法是用新的不含铅的油漆覆盖旧的漆层，而不是去除老的含铅的漆层，因为这样做，铅尘反而排放到空气当中了。
If your old house has lead paint in good condition, cover it with fresh paint rather than removing it, which releases lead dust into the air.
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