Заполните пропуски в инструкции следующими словами:
1) Measure the 1_______ by mass.
2) 2_______ the aggregate.
3) Reduce the 3_______ time.
4) Wear a 4_______ or goggles when operating a grinding wheel.
1) Measure the 1_______ by mass.
2) 2_______ the aggregate.
3) Reduce the 3_______ time.
4) Wear a 4_______ or goggles when operating a grinding wheel.
• mask
• Charge
• mixing
• cement