см. тж. запас прочности
• The durability ( or strength ) of the hardened cement is excellent.
• The integrity of solder joints subjected to vibration and shock is best preserved by ...
• Mechanical robustness ( or rigidity ) test ...
• The sphere will be pressure tested to prove its soundness .
• Lucalox has been found to retain its strength at high temperatures.
• In this problem toughness and reliability are closely related.
• The ruggedness of freight elevators ...