您要查找的是不是：
- annular protecting fluid 环空液
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- Methods Use glycerine as protective fluid,keep RBC in a low temperature,unfreeze it with water before using,and remove the glycerine with several different washing solutions in concentration. 方法以甘油为保护剂,低温保存红细胞,使用前水浴解冻,用不同浓度的洗涤液洗涤去除甘油,以红细胞回收率、游离血红蛋白含量、残余甘油量、体外溶血试验和无菌试验为质量控制项目。
- They netted the fruit trees to protect them from birds. 他们用网覆盖住果树以使其免遭鸟害。
- It was reported that there would be an annular eclipse tomorrow. 据报道说，明天有日环食。
- How can we protect our computer files? 我们怎样才能保护我们的计算机数据？
- She was engaged in protecting wild birds. 她致力於保护野生鸟类的工作。
- Will this cleaning fluid harm the furniture? 这种清洁剂会损害家俱吗?
- A plastic cover protect the computer. 这台计算机由一个塑料防护罩盖着。
- It's our duty to protect the saplings. 保护树苗是我们的责任。
- A piece of armor protecting the throat. 护喉甲用来保护咽喉的盔甲
- In case of flood, the dam can protect us. 在发洪水的时候，大堤可以保护我们。
- A law was passed to protect alien property. 通过了一项法律保护外国侨民的财产。
- An umbrella will protect you from the rain. 雨伞可以保护你不致雨淋。
- There's some sort of sticky fluid on the kitchen floor. 厨房的地上有一种发黏的液体。
- HSS-E annular cutter with weldon shank, 25mm D.O.C. 双削平柄系列超硬高速钢孔钻，切削深度25毫米.
- These policemen wear helmets to protect them. 这些警察戴着头盔保护自己。
- HSS-E annular cutter with weldon shank, 50mm D.O.C. 双削平柄系列超硬高速钢孔钻，切削深度50毫米.
- Air whether in the gaseous or liquid state is a fluid. 空气，无论是气态的还是液态的，都是一种流体。
- He raised his arm to protect his child from hurt. 他伸出手去，保护他的孩子免受伤害。
