The relation between cocoonshell weight and cocoon layer ratio were closely positive on both genetic & phenotypic character.
唯有茧层量与茧层率之间无论遗传上还是表型上均表现密切正相关。
2
As to the economic characteristics, they had the features of big cocoon, high percentage of cocoonshell, long silk length, easy seperating of cocoon, good purity and superior quality.
在经济性状上具有茧型大，茧层率高，茧丝长，解舒易，净度好，丝质优的特点。
3
The outer part of the envelope now has the form of a thick shell or dust cocoon.