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- A proton donor. 质子供体
- Nitroform is such a strong proton donor. 三硝基甲烷是一个极强的质子给予体。
- And is therefore an acid (proton donor). 因此它又是个酸(质子供体)。
- L-Cystine is Electrochemically Reducted by Treating Acetic Acid as a Proton Donor 乙酸作供质子剂电化学氢化胱氨酸
- A proton or a neutron, especially as part of an atomic nucleus. 核子质子或中心,尤指作为原子核的一个组成部分
- This nitration reaction was innovated by using sulfuric acid as the proton donor instead of acetic acid and acetic anhydride, and solvent n-octanol could ... 硝化反应的创新处是用硫酸代替醋酸和醋酐,作为溶剂的正辛醇可不经处理循环使用。
- 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 weight of a neutron is about the same as a proton. 中子的重量和质子的重量差不多相等。
- A proton carries a positive charge and repels each other. 质子带正电荷,互相排斥。
- An electron has a negative charge,a proton has a positive charge. 电子带负电荷,质子带正电荷。
- Amines other than pyridines have been successfully employed as a proton sponge. 用胺作为质子吸收体代替吡啶还是得到同样的结果。
- In a proton, only 1.3% of its mass comes from the mass of the three quarks. 对于质子,仅有1.;3%25的质量是来自于三个夸克的质量。
- When a proton recaptures an electron, red light is frequently emitted. 当一个质子再度捕捉到电子时,常常会辐射出红光。
- The boundary of the charge region for a proton is not sharp like the surface of a billiard ball. 质子电荷飞域的边界并不象弹子球的表面那样分明。
- A particle, such as an electron, a proton, or a neutron, having half-integral spin and obeying statistical rules requiring that not more than one in a set of identical particles may occupy a particular quantum state. 费密子一种如电子、质子或中子等自旋为半整数的基本粒子,具有一种使得不可能有多于一个的粒子占有任何一个特殊的量子力学态的量子力学对称性
- These neutrons react with nitrogen nuclei, giving out a proton and producing the active carbon isotope 14. 这些中子跟氮元素的核子产生反应,释放出一个质子并产生出活性碳同位素14。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
- What we want to know is whether the weight of a proton is much greater than that of an electron. 我们要知道的是,质子的重量是否比电子的重量大得多。
- A bowl of hot chicken soup is good for you. 喝一碗热鸡汤对你有好处。