One microgram is the lethal dose for a human being.

只需百万分之一公克的钸，就足以致命。

The radiation level above the reactor is over 3,500 roentgens, almost 9 times the lethal dose.

反应炉上方的辐射值超过3500伦琴 几乎是致命量的9倍。

A lethal dose for a man of his size would be, what, eight to ten tablets?

要让他这么大个子的男人致死应该要八到十片吧？

Isn't that also the same amount of time it takes a lethal dose of secobarbital to kill someone?

这与服下司可巴比妥之后药效发作致人死亡的时间是否吻合呢？

At these astronomical levels 15 minutes is all takes for a human being to absorb a lethal dose of radiation.

在这惊人高辐射值下 人体只要吸收15分钟就足以致命。

Lacey Spears poisoned 5-year-old Garnett by ministering lethal doses of salt through a drape as he reamined sick in hospital.

5岁的Garnett生病住院期间，Lacey Spears给他注射了致命剂量的盐水，导致他中毒。

Your average adult human would need to eat about 8 kilograms of dark chocolate to get a lethal dose of theobromine.

一般成年人需要吃掉大约8公斤的黑巧克力，才会摄入份量足以致死的可可碱。

A lethal dose is 40 grams of salt.

而致死量为40克。

And there's enough there for a lethal dose.

总剂量足以致命。

Often used in chemical weapons, a lethal dose amounts to just 11 milligrams, or about the size of a grain of sand.

通常用于制备化学武器，仅 11 毫克就可致死，大概一粒沙子大小。