Warning: file_put_contents(): Only 0 of 6819 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 spring silkworm rearing season是什么意思，spring silkworm rearing season的翻译，spring silkworm rearing season音标、读音、用法和例句_魏碑心思朗文词典
Rearing silkworm twice in the spring season was a new trial which could save labour cost so as to suit for the present situation. 饲养二春蚕就是适应这一形势需要而形成的省力化、经济化养蚕新技术。