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- photo chemical cell 光化电池
- The structure and performance of a kind of photo chemical smog chamber 一种用于研究光化学反应烟雾腔的结构和性能
- Keep the sun behind you when you take a photo. 拍照时要让太阳留在你的身后。
- He showed me a photo of a family group. 他给我看一张合家欢的照片。
- Many a time have we come across this same photo. 我们多次都见到过这同一张照片。
- He adjusted the shutter before taking a photo. 在照相前，他调整了快门。
- The woman on the photo is my paternal grandmother. 照片上的这个妇人是我祖母。
- He took a lot of photo last sunday, and so do I. 他上星期照了许多照片，我也一样。
- The photo made him quite attractive. 照片把他拍得相当英俊。
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- That photo is a good likeness of David. 戴维那张相片照得很像。
- 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。
- He hit upon a photo taken ten years ago. 他偶然发现一张十年前拍的照片。
- The photo shows her dressed in black. 在这张照片里，她穿著黑衣服。
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- I got her in focus before I took the photo. 我在拍摄前先用镜头把她对清楚。
- Ammonia is a chemical substance. 氨是种化学物质。
- The photo has faded beyond recognition. 相片已经模糊，不能辨认。
- 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
