см. тж. избегать; мешать; не давать распадаться; препятствовать; удерживать от распада

• Extensive baffling is used to prevent laser scatter from reaching the photomultipliers.

• In a fast crosswind the wing cannot be raised quickly enough to forestall a skid.

• Motors on the milling heads are totally enclosed to exclude (or prevent, or guard against) ingress of metallic dust.

• A duplicate radar system is the obvious way to guard against the possibility of grounding due to equipment failure.

• The installation insures against dehydration of the gypsum.

• The resulting gyroscopic stabilization keeps the projectile from tumbling.

• The filter keeps stray radio-frequency signals from entering the amplifier.

• The closed vacuum system precludes oxidation.

• The presence of titanium prevents the formation of martensite.

• The non-return valve prevents air being drawn back into the main-pump suction.

• This requires shutdown of the reactor to safeguard it against the release of contaminants.

• The rams are situated on the outside of the main chassis members to ensure that no twisting arises at ...

• Properly executed roof bolting will inhibit loosening.