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

以聚碳硅烷（PCS）为原料，经不熔和烧成制得碳硅。

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

形横截面在棉网和棉条中，比形横截面能产生较大的粘着作用。