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.