而火山灰颗粒大小、曝光时间、飞机发动机功率设置等因素，在提出安全限值时都需要纳入考虑范围。

And the element such as setting of power of engine of eruption grain size, time of exposure, aircraft, need to bring into consideration limits when putting forward safety to be restricted to be worth.

youdao

而火山灰颗粒大小、曝光时间、飞机发动机功率设置等因素，在提出安全限值时都需要纳入考虑范围。

And the element such as setting of power of engine of eruption grain size, time of exposure, aircraft, need to bring into consideration limits when putting forward safety to be restricted to be worth.

youdao