无毒的英文：
innocuity
innocuousness

They are also safe (nontoxic).
它们也是安全的(无毒的)

Electrical mosquito-repellent incense, poisonless and smokeless, keeps you safe and sound.
电热蚊香，无毒、无烟，保君平安。

Sanitary fumigant, poisonless and smokeless, can clean and refresh air effectively.
卫生熏香，无毒、无烟，清新空气有特效。

Mescaline is completely innocuous, and its effects will pass off after eight or ten hours.
三甲氧笨乙胺无毒，它的效力八到十小时就过去了。

Insects fed on a bland (nontoxic) diet would show their real biotic potential
昆虫取食了味纯和的(无毒的)饲料可能表现出它们真正的生物潜能。

Mescaline is completely innocuous,and its effects will pass off after eight or ten hours.
三甲氧笨乙胺无毒，它的效力八到十小时就过去了。

Unlike carbon monoxide, gaseous hydrocarbons at concentrations normally found in the atmosphere are not toxic
和一氧化碳不一样的是，在空气中常被发现的气体状的浓缩碳氢化合物是无毒的

Adopting toxin-free, non-hazardous or low-toxin and low-harm raw materials to replace toxic and hazardous raw materials
采用无毒、无害或者低毒、低害的原料，替代毒性大、危害严重的原料

(3) The dumping of the low-toxic and non-toxic wastes not included in Annex I and II requires a prior general permit.
三、倾倒未列入附件一和附件二的低毒或无毒废弃物，应当事先获得普通许可证。

The tone of the meeting was pleasant and innocuous.
会见的调子是令人愉快和坦率的。

While that judgment may sound innocuous, it is actually striking.
这一判决看似无足轻重，实则意义深远。

It must not be supposed that the fall in prices thus analysed is innocuous.
我们决不能假设这样分析出来的价格下降是无害的。

Even seemingly innocuous words are offensive in certain contexts.
甚至看似毫无恶意的言辞在某些语境下都会引起冒犯。

Both mushrooms look innocuous but are in fact deadly.
这两种蘑菇看起来似乎都无害，实际上却是致命的。

The tone of the meeting was pleasant and innocuous.
会见的调子是令人愉快和坦率的。

While that judgment may sound innocuous, it is actually striking.
这一判决看似无足轻重，实则意义深远。

It must not be supposed that the fall in prices thus analysed is innocuous.
我们决不能假设这样分析出来的价格下降是无害的。

Even seemingly innocuous words are offensive in certain contexts.
甚至看似毫无恶意的言辞在某些语境下都会引起冒犯。

Both mushrooms look innocuous but are in fact deadly.
这两种蘑菇看起来似乎都无害，实际上却是致命的。