Trilobal polycarbosilane(PCS) fibers were prepared by melt spinning PCS precursor through Y-shaped spinnerret.

以聚碳硅烷（PCS）为原料，经不熔和烧成制型碳硅纤。

It was found that fibers of circular cross section produce greater cohesion in webs and slivers than do trilobal fibers.

横截面纤在棉网和棉条中，比横截面纤能产生较大的粘着作用。