放出氢气 meaning in English
liberation of hydrogen
Examples
- The free alkali metals react immediately with water to liberate hydrogen .
游离的碱金属直接和水中作用，放出氢气。 - 11 never vent hydrogen from a high pressure source such as a cylinder in order to remove contaminants . always use an external source of nitrogen or air for this purpose
决不允许为了吹除杂质从高压气源，例如气瓶中放出氢气。做类似事情时，只能用氮气或空气作为外在气源。