O. overflow tank high level alarm.
燃油溢流舱高位报警f。
COOLANT LEVETL: in newer cars look at the level markings on the overflow tank next to the engine.
冷却液位：如果是新车，只需查看发动机旁溢流箱上液位标志。
The overflow tank level and the speed of both the role of Chip can be changed by changing the factors such as the nozzle inlet pressure, drill gage width, nozzle diameter of the PDC bit.
改变喷嘴入口压力、钻头保径宽度、喷嘴直径等影响因素对改变井底漫流层和排屑槽内的速度都有作用；
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