交叉学科 天体物理学 tracking 跟踪 following 跟踪 follow-up ①跟踪，随动 ②随动系统 slaving 辅助设备，从属[作用]，跟踪 tailing 跟踪 tracking ①探测 ②跟踪
计算机应用 多媒体 释文 tracking 跟踪
- 20项陈述测验
- 210Po survey
- 2-1=0或者黑暗中看不见
- 211工程
- 212剧院
- 2.16m optical telescope
- 2.16米光学望远镜
- 2:17-type rare earth cobalt-based permanent magnetic material
- 2:17型稀土钴永磁合金
- 21-Articles-Negotiation between China and Japan
- 21 Centimeter Array
- 21 centimeter radiation
- 21-centimeter radiation
- 21CMA
- 21 cm forest
- 21 cm intensity mapping
- 21cm line
- 21-cm radiation
- 21 cm tomography
- 21 hydroxyprogesterone
- 21-hydroxyprogesterone
- 2:1 phyllosilicate minerals
- 21st Century Business Herald
- 21st Century COE Program
- 21st Century Museum of Contemporary Art, Kanazawa