• One unsolved problem remains to face ( or confront ) the trajectory designer.
• The industry is now being confronted ( or faced ) with an acute ventilation problem ( or The industry is facing an acute ... ).
• One unsolved problem remains to face ( or confront ) the trajectory designer.
• The industry is now being confronted ( or faced ) with an acute ventilation problem ( or The industry is facing an acute ... ).
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012