• In steel grinding, the chemical reactivity of diamond may be ( or present ) a problem .
• The possible role of phosphorus in prebiotic syntheses poses ( great ) difficulties .
• In steel grinding, the chemical reactivity of diamond may be ( or present ) a problem .
• The possible role of phosphorus in prebiotic syntheses poses ( great ) difficulties .
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012