时间-时间-时间交换网络
Time-Time-Time Switching Network TTT
机械运转不均匀系数
coefficient of speed fluctuation
接触式干运转机械密封
contacting dry running mechanical seal
输煤机械转机防尘
dustproof of coal conveying machine during operation
溜走运转时间计
elapsed running time meter
全冲程运转时间
full stroke operating time
全负荷相当运转时间
equivalent full load hours
运转时间变量堆栈
RTVS Run – Time Variable Stack
RTVS Run C Time Variable Stack