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- An acid having one replaceable hydrogen atom. 一元酸只有一个可置换氢原子的酸
- Containing two replaceable hydrogen atoms. 二元的含有两个可取代的氢原子的
- 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。
- Containing three replaceable hydrogen atoms per molecule.Used of an acid. 三元的三代的,三碱(价)的每个分子中含有三个可取代的氢原子的。用于酸类
- Containing three replaceable hydrogen atoms per molecule. Used of an acid. 三元的三代的,三碱(价)的每个分子中含有三个可取代的氢原子的。用于酸类
- A compound with a metal replacing hydrogen in ammonia,such as sodium amide,NaNH2. 氨化物由一种金属取代氨分子中的一个氢原子得到的化合物,如氨化钠NaNH2。
- A compound with a metal replacing hydrogen in ammonia, such as sodium amide, NaNH2. 氨化物由一种金属取代氨分子中的一个氢原子得到的化合物,如氨化钠
- These reagents are fluid , usually easily storable , transportable, they can replace hydrogen fluoride safely in some reactions. 在部分反应中可方便,安全地替代氟化氢作为氟化试剂。
- an acid containing four replaceable hydrogen atoms per molecule 每个分子含有四个可置换的氢原子的酸
- an acid containing only one replaceable hydrogen atom per molecule 每个酸分子仅含有一个可置换的氢原子
- an acid containing three replaceable hydrogen atoms per molecule 每个分子含有三个可置换的氢原子的酸
- an acid containing two replaceable hydrogen atoms per molecule 每个分子含有两个可置换的氢原子的酸
- Water contains hydrogen and oxygen. 水含有氢和氧。
- containing three replaceable hydrogen atoms per molecule 每个分子中含有三个可取代的氢原子的
- A replaceable printed circuit board. 一种可替换的印制电路板。
- an acid containing four replaceable hydrogen atoms per molecule. 每个分子含有四个可置换的氢原子的酸。
- an acid containing three replaceable hydrogen atoms per molecule. 每个分子含有三个可置换的氢原子的酸。
- an acid containing two replaceable hydrogen atoms per molecule. 每个分子含有两个可置换的氢原子的酸。
- A person, unlike a machine, is not replaceable. 人和机器不同,是不可替代的。
- Water is composed of hydrogen and oxygen. 水由氢和氧组成。