UC知道化学专业英语翻译短语
来源：百度知道 编辑：UC知道 时间：2024/06/28 23:51:05
1、可用于溶液表面张力测定的低值教具的制作及其性能测定
2、现有的表面张力测定仪价格昂贵，用于教学时由于学生人数多，不能确保人手一套。我们利用了废医用输液管、注射器等自制了一套表面张力测定仪。自制的“溶液表面张力测定仪”，材料易找，装置简单，操作便捷，读数准确，能符合教学的要求。
3、共价键生成时杂化轨道成键能力比杂化前原子轨道成键能力更强，这是一个较为抽象的化学理论点，也是教学中的重点和难点之一。杂化前后碳原子价键轨道在烷烃成键的定性比较的简易实验是一种掌握定性检验理论的简易实验方法，实验适用于山区和边远贫困地区的教学。
1.Solution surface tension can be used for the determination of low-value production of teaching aids and their performance measured
2.The surface tension of the existing meter is expensive, when used in teaching as a result of the number of students, and can not ensure that a staff. We use a tube of medical waste, syringes, such as a surface tension of self-made detector. Self-made "solution surface tension meter", easy to find materials, installation is simple, convenient operation, the reading is accurate, able to meet the requirements of teaching
3.Generated when the covalent bond hybrid orbital bonding ability of the former than the hybrid atomic orbitals bonding capacity, which is a more abstract point of chemical theory, but also the focus of teaching and one of the difficulties. Before and after the carbon hybrid bond orbital valence bond in alkanes relatively simple qualitative test is a qualitative test to master the theory of simple experim