Subject: hearing of equipment parts. помогите пожалуйста, ставит в тупик словосочетаниhearing of equipment parts. The explosion-proof construction of the mechanical part of hoisting equipment and of crane rails shall prevent ignition or a flash of explosive matter by sparks originating from friction, concussion or hearing of equipment parts. заранее спасибо |
Точно не опечатка? Wearing? |
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