- намечать отверстие
- •
It is good practice first to locate the hole with a drill of smaller diameter.
•The location for each hole should be spotted on the pipe with a centre punch.
* * *Намечать отверстиеBefore drilling the holes to the specified arrangement one should locate each hole with a center-punch.The location for the opening shall be spotted only after completion of pipeline mounting.
Русско-английский научно-технический словарь переводчика. 2013.