ตัวอย่าง gas mask

• It was discovered that, having a long face, the standard gas mask did not fit me.

• Must such a person change his or her gas mask?

• Gas mask carriers fall within the scope of the tax.

• A gas mask is of no value whatsoever.

• It is true that no gas mask will operate in regard to the skin, because there is a certain gas which produces blisters.

• We had to wear a gas mask to handle it.

• To counter this, people have been issued with a type of gas mask which fits over the mouth and nose.

• Both of those are very difficult from behind a gas mask.

• The presence or absence of a good gas mask might be a matter of life or death.

• Four gas mask storage centres are now established.

• If the gas mask had remained an expensive instrument of special manufacture, we could not have overcome our problem.

• Again, with regard to the use of gas, each of us at the beginning of the last war was furnished with a gas mask.

• In my own division we have villages which have not yet received a single gas mask.

• There are problems about instruction in the fitting and use of the gas mask.

• The gas mask referred to will give protection for at least 15 minutes against the highest concentrations of gas ever likely to be encountered.