If you wish to change the driver, you will need to unload the driver in use before loading another driver.
如果希望改变驱动程序,需要先卸载正在使用的驱动程序,然后再装载另一个驱动程序。
Unload before stop the machine, or there will be left magnet. Next time when use, magnetize with accumulator cell or dry cell battery.
停车前要先卸去负载最后停车,如果带负载停车,可能引起剩磁,下次使用时要用蓄电池或干电池重新充磁。
The stress relaxation experiments of rocks under the deformation at peak load and load-unload experiments before peak load are carried out.
进行了岩石在峰值荷载变形条件下的松弛试验及峰值荷载前的加卸载试验。
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