в чистом виде
• In the uncombined (or pure) state, deuterium finds use as a research tool.
• This salt has never been obtained pure.
Русско-английский научно-технический словарь• In the uncombined (or pure) state, deuterium finds use as a research tool.
• This salt has never been obtained pure.
Русско-английский научно-технический словарь