您要查找的是不是：
- chemical photographic camera 化学效应摄影机
- Binoculars, telescope, microscope, photographic camera and equipment. 双筒望远镜，望远镜，显微镜，照相机及附属品。
- Aim\ To realize automatic height measurement and focusing of aerial photographic camera. 目的实现航空像机摄影高度自动测量和调焦。
- Although is carrying the photographic camera throughout, inside has packed the beautiful scenery, but throughout is disinclined in Lijiang to photograph actually. 尽管始终背着照相机，里面装满了美丽的风景，但在丽江却始终懒得拍照。
- Photographic Camera Control System 照相机控制系统
- grating positioning step and repeat photographic camera 光栅定位分步反复式照相机
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- We are doing a chemical experiment. 我们正在做化学实验。
- The Automatic Height Measurement and Focusing of an Aerial Photographic Camera Based on Area-array CCD 基于面阵CCD的航空相机摄影高度自动测量及调焦
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- Ammonia is a chemical substance. 氨是种化学物质。
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- Beware how you handle the toxic chemical. 小心处理有毒的化学药品。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- Some chemical compounds can be resolved by heat. 一些化学化合物可以通过加热分解。
- I am not familiar with chemical terms. 我不熟悉化学术语。
- He devoted his life to chemical research. 他一生从事化学研究。
- He is experimenting with a new chemical. 他正在实验一种新的化学制品。
- The two elements are synthesized by a chemical process. 这两种元素已经化学合成。
