将这句话翻译成英语

1、The magnesia-alumina spinels that mentioned include grain size 5 ~ 3 mm, less than 3 mm and less than 0.088 mm of three segment of the particle size, or one of the two or three particle size section of the combination.

2、Involves the professional belong to the following:
Grain size: particle size
Magnesium aluminate spinel: magnesia-alumina spinel

1、Mentioned magnesia-alumina-spinel including grain size 5 ~ 3 mm, less than 3 mm and less than 0.088 mm of three segment of the particle size, or one of the two or three particle size section of the combination.

2、Involves the professional belong to the following:
Grain size, particle size
Magnesium aluminate spinel: magnesia-alumina spinel

The spinel including size of 5 ~ 3mm, less than 3mm and less than 0.088mm three size section in one, or one of the two or three size section combination.The professionals are as follows:Size: particle sizeMagnesia alumina spinel: magnesia-alumina spinel

mentioned the magnesia-alumina spinel include particle size 5～3mm,less than 3mm and 0.088mmc

Spinel described, including particle size 5 ~ 3mm, 3mm and less than three particle size less than 0.088mm in a paragraph or two of the three size segments or a combination.