防毒面具

How many men during World War I owe their lives to Garrett Morgan who invented the gas mask?

有人多少人知道他们能活到现在，多亏了第一次世界大战期间发明防毒面具的Garrett Morgan ？

The part of a gas mask that contains the filter for removing toxic agents from the air.

滤毒罐防毒面具的一部分，含有过滤装置，能将有毒成分从空气中除去

Scientists measured according to the fire boar's nose made of poison peculiar ability of the world's first gas mask.

科学家根据火野猪的鼻子测毒的奇特本领制成了世界上第一批防毒面具。

ALE personnel were well equipped with proper clothing and each unit possessed their own gas mask.

机场执法人员均配备有适当的著装和防毒面具。

Just a simple question here, to see what i can be told, but my father told me that the gas mask canister was used as a container for extra ammo, bread, personal effects etc. by alot of soldiers.

只是一个简单的问题在这里，看看我可以告诉，但我的父亲告诉我，防毒面具罐被用来作为一个容器的额外弹药，面包，个人财物等的许多士兵。。

The part of a ''.'gas'.'' mask that contains the ''.

滤'。''毒罐防毒面具的一部分，含有''。

ALE personnel were well equipped with proper clothing and each unit possessed their own gas mask.

机场执法人员均配备有适当的着装和防毒面具。

Xiao Ming learnt how to wear a gas mask when they were taught about fire protection.

学校宣传消防知识时，小明学会了如何戴防毒面具。

In one classroom for 9- and 10-year-olds at a Jerusalem school, a boy tried on a gas mask with the help of the soldier instructor.

在耶路撒冷一所学校里，一班9至10岁的孩子在学习使用防毒面具。

How many men during the First World War owed their lives to Garrett Morgan who had invented the gas mask?

那么美国黑人发明家及科学家呢？第一次世界大战时，有多少人因为加列特。摩根及他发明的防毒面具捡回生命？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。