detectable crack造句

Not all structure must demonstrate detectable crack propagation to ensure safety of operation.
:: : The water is seeping in along a wall, and maybe up through the foundation, not through any detectable crack.
The National Transportation Safety Board ( NTSB ) determined that the engine failure was caused by a detectable crack in a compressor disk, on which a maintenance contractor had failed to perform a proper inspection and had kept poor records.
Some structures operate under the safe-life design principle, where an extremely low level of risk is accepted through a combination of testing and analysis that the part will ever form a detectable crack due to fatigue during the service life of the part.
It's difficult to find detectable crack in a sentence. 用detectable crack造句挺难的