• In ( or Under ) drastic ( or arduous , or violent , or severe ) conditions ...
• This alloy has been used for severe service at high temperatures.
• In ( or Under ) drastic ( or arduous , or violent , or severe ) conditions ...
• This alloy has been used for severe service at high temperatures.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012