“蚕种”的英语可以翻译为：silkworm egg ...

五张布子(蚕种),十来担叶够么? ”With five sets of grubs to feed , that won't be nearly enough. "三张蚕种,该可以采多少茧子呢?Five trays of eggs would hatch out a huge number of silkworms.他们成功地培育了优良的蚕种.They succeeded in cultivating fine breeds ...