. . "Ship noise." . . "Measurement." . . "Tolerances(mechanics)" . . "Maintenance." . . "PHILADELPHIA NAVAL SHIPYARD PA." . . "Acceptability." . . "Vibration." . . "Collection of letter reports of vibration surveys issued during 1963"@en . . . . . . . . . . . . . . "Ship hulls." . . "Diesel engines." . . "Test equipment." . .