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- On the basis of the features of active hydrogen atom and the literature reports,the general formula of glyphosate is given. 归纳了草甘膦的性质,并根据草甘膦分子存在着活泼氢原子和基团的特点,结合文献中各取代物的报导情况,提出了草甘膦及其衍生物的通式。
- Hydrogen donor can provide active hydrogen atom to postpone or control the forming of the second liquid phase and effectively restrain the coking when catalyst and hydrogen were absent. 供氢剂在无催化剂和氢气存在条件下 ,可提供活性氢原子推迟或阻止第二液相的形成 ,有效抑制生焦 ;
- active hydrogen atom 活性氢原子
- An acid having one replaceable hydrogen atom. 一元酸只有一个可置换氢原子的酸
- We will consider this Zeeman effect for the hydrogen atom. 我们将对氢原子考虑此塞曼效应。
- A proton or a neutron has about the same mass as a hydrogen atom. 质子或中子的质量和氢原子的质量大致相同。
- The oxygen atom is nearly 16 times as heavy as the hydrogen atom. 氧原子的重量几乎是氢原子的16倍。
- An acid containing only one replaceable hydrogen atom per molecule. 每个分子仅含有一个可置换的氢原子的酸。
- Keywords electrochemical;synthesis silver acetylides;crystal structure;,,,, ligand containing two different active hydrogen atoms;malononitrile; 电化学合成;炔银配合物;晶体结构;含有两个不同活性氢;配体;丙二腈;
- We now incorporate this condition into the analysis of the hydrogen atom. 现在我们把这个条件用于分析氢原子。
- He applied the concept of quantization of energy to the hydrogen atom. 他把能量量子化的概念用于氢原子。
- Now consider applying an external magnetic field to the hydrogen atom. 现在考虑加一外磁场于氢原子。
- Who knows the atomic weight of the hydrogen atom? 谁知道氢原子的原子量究竟是多少?
- The nucleus of the smallest atom - the hydrogen atom, contains only one proton. 氢是最细小的原子,它的原子核内只有一颗质子。
- He applied the concept of quantization of energy to the hydrogen atom . 他把能量量子化的概念用于氢原子。
- The yield of the reaction was determined using chemistry titration by which the unreacted active hydrogen was detected. 采用化学滴定法测定了未反应活泼氢的质量分数,从而确定了含氢硅油中活泼氢的转化率。
- Containing two replaceable hydrogen atoms. 二元的含有两个可取代的氢原子的
- Being combined with two hydrogen atoms, one oxygen atom may form a molecule of water. 一个氧原子同两个氢原子化合,可以形成一个水分子。
- But what ionizes the hydrogen atoms? 那么,又是什么电离的氢原子呢?
- The factors, which may affect the production of diamond films, have been discussed, such as source of carbon in gas, substrate in solid and active hydrogen molecules and atoms. 阐述了在金刚石薄膜生长过程中气相碳源、固相基底以及激活氢分子与原子对生成产物的影响。