By themselves, these secretions are usually odorless.

这些分泌物本身通常是无的。

It is mostly transparent and is almost odorless.

它通常都是透明无的。

It's odorless and colorless, so it doesn't affect how products look or smell.

它是无色无的，所不会影响产品的外形或气。

Now, we showed it there, but the truth is, it is colorless, it is odorless.

现在, 我们展示它, 但事实是它是无色无的。

The fuel, he said, is odorless and invisible but has a huge impact on the climate.

他说，天然气" 无形无，但是对气候影响巨大。"

" It's Veritaserum, a colorless, odorless potion that forces the, drinker to tell the truth, " said Hermione.

“是吐真剂，一种无色、无的药剂，强迫喝它的人说实话。”赫敏说。

When leaked into the air, liquid nitrogen vaporizes into an odorless gas that is capable of displacing oxygen.

当液氮泄漏到空气中时，它会蒸发成一种无的气体，能够驱逐氧气。

And when it dries, it's odorless and colorless.

当它干燥时，它是无、无色的。

When they are born, fawns are almost odorless to  protect them from who?

小鹿生时几乎没有气，护它们免受谁的伤害？

An odorless gas for a bug you can't see?

用没有气的喷雾来杀看不见的虫子？

Sarin, an odorless and colorless liquid, is so dangerous that it's classified as a weapon of mass destruction under international law.

沙林，一种无色无的液体，由于其致命性而被国际法列为大规模杀伤性武器。

It's so chilly out there that scientists expected Rosetta's instruments to detect scarcely more than odorless carbon dioxide from the comet.

那里非常寒冷，因此科学家预测罗斯塔能够从该彗星上探测几乎无的二氧化碳。

So it seems that cloud of odorless deadly gas had a silver lining after all.

无色无的致命气体 也还是有一丝仁慈。

There are two tricky obstacles to making lighted signs out of this naturally clear, odorless gas: capturing it and making it glow.

用这种天然透明、无的气体制作照明标志有两个棘手的障碍：捕捉它和使它发光。

As the name implies, it's the liquid form of nitrogen gas, a colorless, odorless gas that makes up about 78% of our atmosphere.

顾名思义，液氮就是液态的氮气，一种无色无的气体，占大气约78％。

It’s odorless and colorless, so you’ll only know you are a victim when strange things start to happen to you.

它无无色，所只有当奇怪的事情开始发生在你身上时，你才会知道你是受害者。

When these bacteria feed on the proteins and fats in apocrine sweat, they turn the odorless compounds into new ones that can smell very unpleasant.

这些细菌大汗腺的汗液中的蛋白质和脂肪为食，他们将无的化物转变成很难闻的新化物。

Normally, having all that trimethylamine in your body is not a problem, because it's converted into an odorless molecule, thanks to a special enzyme in the liver, known as a flavin-containing monooxygenase.

通常情况下，你的身体里存在三甲胺是没有问题的，由于肠道里一种酶的存在，它会转换成一种无气的分子，这种酶被称为黄素单氧酶。