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- Methods:Hydrogenated terphenyls in the air was collected with petroleum ether or chorcoal turb and then determined by spectrophotometer. 目的:建立作业场所空气中氢化三联苯的采样和测定方法。
- Keywords hydrogenated terphenyls;air;ultraviolet spectrophotometer; 氢化三联苯;空气;紫外分光光度法;
- Keywords Hydrogenated terphenyls;Petroleum ether;Ultravioblet spectrophotometer; 氢化三联苯;石油醚;紫外吸收分光光度计;
- Water contains hydrogen and oxygen. 水含有氢和氧。
- Hydrogenated terphenyls 氢化三联苯
- hydrogenated terphenyl 氢化三联苯
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。
- Water is composed of the elements hydrogen and oxygen. 水是由氢元素和氧元素组成的。
- Water may be resolved into hydrogen and oxygen. 水可以分解为氢和氧。
- Oil is hydrogenated to produce a solid fat. 油被氢化产生固体脂肪。
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- Hydrogen and oxygen combine/Hydrogen combines with oxygen to form water. 氢与氧化合成水。
- A molecule of water consists of two atoms of hydrogen and one atom of oxygen. 水分子含有两个氢原子和一个氧原子。
- Water can be dissolved into hydrogen and oxygen. 水能分解成氢和氧。
- This will happen in partial hydrogenated oil. 是的全氢化的油是不存在反式脂肪酸!
- Both hydrogen and oxygen are elements. 氢和氧都是化学元素。
- Hydrogen is a one-valence element. 氢是一价的元素。
- Water is a compound of hydrogen and oxygen. 水是氢和氧的化合物。
- This metal acts on water to set hydrogen free. 这种金属作用于水，就释放了氢气。
- Water can be broken down into hydrogen and oxygen. 水可以分解为氢和氧。
