Theactuatorspeedisdeterminedbyapressurereducingvalve.
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弘扬工匠精神应如何看待传承与创新的关系?( )
A. 二者都不重要
B. 创新比传承更重要
C. 两者是相辅相成统一的
拥有丰富的经验和高超的技艺就能成为一名优秀工匠。()
A. 对
B. 错
Whatistherelationbetweentemperatureandvolumeofoil?
A. volumeincreasesastemperatureincreases
B. volumedecreasesastemperatureincreases
C. volumeneverchangesastemperaturevarying
D. noneoftheabove
Whatisthemainreasonofpumps'cavitation?
A. lowfluidlevel
B. blockedsuctionline
C. airleakinthesuctionline
D. electricmotoratlowspeed
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