为了避免转子超越弯曲模态的临界转速，转子轴伸长度应控制在安全范围内。
The shaft extension should be maintained at a safe range in order to avoid critical speed at rotor bending modes.
卡特彼勒发电机组在质量、强度、可靠性等方面拥有世界范围内不可超越的名誉。所有卡特彼勒发电机组都是在ISO 9001标准下生产的并且符合最高的安全标准。
Caterpillar generators have an unsurpassed reputation world-wide for quality, strength and reliability, are all produced under ISO 9001 standards and to meet the highest safety standards.
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