When the water hits the right level, the baby birds are kept safe from predators by a corrosive ditch.

当水到达合适的水位时，幼鸟就会被一条腐蚀性的沟渠保护，免受捕食者的伤害。

youdao

The water here contained 965 becquerels of radiation per kilogram - treble the "safe" legal level of 300 becquerels per kilogram.

这水中的放射性是每千克965贝可——是“安全标准”每千克300贝可的3倍。

youdao

This is a safety device, designed to keep the water at a safe level in the event of a LOCA.

这是一种安全设施，当失水事故发生时，能将水位保持在安全范围。

youdao

Desperate families are turning to private water sources - without realising that this water too is contaminated, often at 10 times the safe level, the report says.

BBC: Gaza water too contaminated to drink, say charities