Ten billion microbes in a gram of soil, doing various functions.

100 亿个微生物在这一克土壤里各司其职。

Just to give you an example, a gram of soil would have about 10 billion microbial cells.

举个例子，一克土壤可能包含了 100 亿个微生物细胞。

Less than a hundred nanograms — that's billionths of a gram — is enough to kill an adult.

只有不到 100 纳克——大约只有十亿分之一克——已经足够送一个成年人去阎王爷了。

Although furless and weighing only half of a gram, the baby koala climbs into the mother's pouch unaided.

尽管刚出生的时候没有毛，而且只有半克重，他们就能只靠自己的力量爬进妈妈的袋子里。

As you can see, I literally put less than a gram in, and that's how dark it got.

正如你所看到的，我实际上只放了不到一克，它就变得这么暗了。

Now, just spraying a little bit of water onto those beans adds about 0.1 of a gram of water.

只要在这些咖啡豆上洒一点水，就会增加0.1克的水。

V. cholerae is a gram-negative, curved bacteria which looks like little red or pink comma-shapes on a gram stain.

霍乱弧菌是革兰氏阴性弯曲细菌，在革兰氏染色上看起来像浅红色或粉红色的逗号。

The chemical energy in a gram of glucose is nearly half the amount available from petrol, a famously energy-dense fuel.

一克葡萄糖所含有的化学能量相当于半克汽油能产生的能量，原油是众所周知的能源密集型燃料。

However, if you give me a grams per litre, well, if I'm brewing half a litre than I need.

但是，如果你给我每升一克，如果我酿冲泡了比我需要的多半升的咖啡。

But that only works for animals that weigh less than a gram or so.

但这只适用于体重不到一克左右的动物。

Here the price for gold from Tenkoto is almost $23 a gram, nearly $4 more than the buyers pay the miners.

在这里，来自Tenkoto的金价大约23美元每克，比买主支付给矿工的高出4美元。

In this makeshift shack, this Malian man buys gold from the gold panels for a gram of gold.

在这个临时搭建的小屋里，这名马里男子以一克黄金的价格从黄金面板上购买黄金。

In exactly 5 minutes the mass of this mineral will change by negative 5 billionths of a gram.

恰好 5 分钟内，这种矿物的质量将发生负十亿分之五克的变化。

So, we have the Earth and, on average, there's about half a gram of gold in one ton of earth.

- 所以， 我们有地球， 平均而言，一吨地球中含有大约半克黄金。

The toxin, 40 million times stronger than cyanide, can kill a human at only 80 nanograms - 2-billionths of a gram.

这种毒素比氰化物强 4000 万倍，仅需 80 纳克 - 十亿分之二克就可以杀死一个人。

These miniature spacecraft would weigh no more than a gram, but they'd have sensors, a power source, teeny-tiny thrusters, and communications equipment.

这些微型航天器的重量不会超过一克，但它们有传感器、电源、极小的推进器和通信设备。

" Each serving size, " Wendy says, " has 30 grams of fat." A " gram" is a unit of measurement for weight.

“每份量，”温迪说，“含有 30 克脂肪。” “克”是重量的计量单位。

This stuff is so potent that, as an airborne vapor just a few millionths of a gram per cubic meter of air meets the legal safety limits.

这东西非常强大，作为一种可以利用空气传播的气体，每立方米空气中有百万分之几克，就是法定安全上限。

One hundredth of a gram of the substance, known as VX, is enough to kill, and is classified by the U.N. as a weapon of mass destruction.

这种药品名为VX，0.1毫克就足以致命，被联合国列为大规模杀伤性武器。

In the lab, when doing a gram stain, Clostridium perfringens is Gram-positive, or purple when Gram stained, and look like big cylinders or rods, also called bacilli.

实验室做革兰氏染色时，产气荚膜梭菌显紫色（革兰氏阳性）：很像个大圆柱或棒子，因此也叫杆菌。