1.
Research on the Reform of Silkworm Seeds in Jiangsu and Zhejiang Provinces (1898-1937);
江浙地区的蚕种改良研究（1898-1937）
2.
They also cultivate fine breeds of silkworms.
他们也培育出了桑蚕的良种。
3.
They succeeded in cultivating fine breeds of silkworms.
他们成功地培育了优良的蚕种。
4.
A Cross Breeding Method for Sex-linked Balanced Lethal Line of Silkworm
家蚕性连锁平衡致死系的杂交改良方法
5.
TRIALS FOR IMPROVING GOOD EGG PERCENTAGE OF AUTUMN-PRODUCED HIBERNATING EGGS BY ACID TREATMENT IN WINTER WASHING AND DISINFECTION
秋制越年蚕种冬季浸酸处理提高良卵率试验
6.
Research on the Improvement in Sample Inspecting Method for the Percentage of Hybrid of Silkworm Eggs,Bombyx mori
桑蚕种杂交率抽样检验方案改进研究
7.
Deviation Control Method to Samples of Number of Eggs in Percentage of Good Eggs of Silkworm,Bombyx mori;
桑蚕种良卵率调查中样本间卵粒数的偏差控制方法
8.
Seed Improvement and Development Programme
种子改良和开发方案
9.
To improve the quality of(livestock) by crossbreeding with purebred stock.
改良品种与纯种家畜杂交来改良（家畜）品质
10.
The reformists came to realize the disadvantages of the old China.
改良派意识到了旧中国的种种弊端。
11.
Seed Extension and Germplasm Improvement on Maize in Mountainous Area;
山区玉米种质改良与杂交种推广探讨
12.
Characteristics of Australian South Devon and Its Crossbred Improving Effects
澳大利亚南德温良种肉牛及其杂交改良效果
13.
"bombycid:a moth of the family Bombycidae, which includes the silkworms."
蚕蛾蜂:蚊科中的一种飞蛾,还包括桑蚕。
14.
A moth of the family Bombycidae, which includes the silkworms.
蚕蛾蜂蚊科中的一种飞蛾，还包括桑蚕
15.
Breeding of a Fluorine-resistant Silkworm Race“GuiCanF95”
家蚕抗氟品种“桂蚕F95”选育研究
16.
It is important to enrich the soil before planting.
种植前先改良土壤是很重要的。
17.
(of domestic animals) improved by selective breeding.
（指家畜）通过选择性育种进行改良。
18.
They are improved strains bred by the Agricultural College.
它们是农学院培育出的改良品种。