| |||
proof (и пр. bottom edges of the plinth are proofed against the ingress of moisture. | The lantern is completely proofed against the ingress of dust or insects and sealed glass cover panels are provided for the prisms to facilitate maintenance. Alexander Demidov) | |||
tighten | |||
seal | |||
opaque | |||
proof | |||
seal off | |||
doping |
делать непроницаемым: 1 phrase in 1 subject |
Mechanic engineering | 1 |