信息安全 信息系统安全防护技术 释文 administrative security 行政安全
- Cronos
- crook
- crookedness
- Crookes
- Crookes dark space
- crookesite
- Crookes tube
- Crookes, William
- Crop 3D Imaging
- crop and pastoral zone coupling
- Crop and Pasture Science
- crop area monitoring by remote sensing
- crop breeding
- crop canopy analysis
- crop canopy temperature
- crop chemical control/regulation/manipulation
- crop clean cultivation
- crop climate ecotype
- crop climatic adaptation
- crop-climatical potential productivity
- crop coefficient
- crop combination
- crop composition
- crop composition and distribution
- crop cultivar approval