经研究发现：①悬浮物形态各异，有纤维状、羽毛状或头屑状，由一些金属和非金属化合物组成；

After a careful study, it is found that: (1) Suspensions created in various shapes such as fiber, plume and dandruff, are constituted of the compounds of metal and non metal;

youdao

经研究发现：①悬浮物形态各异，有纤维状、羽毛状或头屑状，由一些金属和非金属化合物组成；

After a careful study, it is found that: (1) Suspensions created in various shapes such as fiber, plume and dandruff, are constituted of the compounds of metal and non metal;

youdao