For many years, Pasteur thought that pebrine was not a contagious disease.
多年来，巴斯德一直认为微粒子病不是一种传染性疾病。
2
At present, pebrine influence seriously on the egg-production of silkworm.
目前家蚕微粒子病对蚕种生产造成很大影响。
3
In order to guarantee the quality of silkworms eggs, multiple sampling plan is put forward about the sampling inspection of pebrine for mother moth in the silkworm.