Level switch mainly composed of reed switch box float, float within the magnetic material.
液位开关主要由磁簧开关和浮子组成，浮子内有磁性材料。
This same switch will also operate on low oil level, such as a slow oil leak.
其他低油位情况发生，比如慢漏油时，浮控开关也会有动作。
Next we switch back to the physical level and take a closer look at accessors.
下面我们回到物理层来仔细看看访问器。
Use the switch to open a door down at ground level.
拉下受擎开关打开地面上的一扇门。
Specifies the level of the switch.
指定设置跟踪开关的级别。
When the level is high or low the float switch Works and alarms.
当液位处于高位或低位时，浮球开关动作，发出报警信号。
When the level is high or low the float switch Works and alarms.
当液位处于高位或低位时，浮球开关动作，发出报警信号。
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