multiple rearing

• 多次养蚕

multiple rearing的用法和样例：

例句

1. This town prospered by rearing silkworms.
   这个堡子是靠养蚕致富的。
2. The silkworm rearing of Shansang variety were contrasted with biological determination.
   通过生物鉴定方式对陕桑系列桑品种进行养蚕对比。