It is required for the position-controlled lowering of the BUR so that the thrust blocks can be automatically move in and -out.
为了使止推块自动进出必须控制上支承辊的下降位置。
It is required for the position-controlled lowering of the BUR so that the thrust blocks can be automatically move in and -out.
为了使止推块自动进出必须控制上支承辊的下降位置。
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