available range的用法和样例：
例句
- A help message is available for this list to expand the abbreviations used and give the valid ranges for each field.
对于该列表有一条展开用到的缩写并给出每个字段有效范围的帮助消息。 - Once the user enters the sensor's effective range and then steps away, the Flushometer Solenoid initiates the flushing cycle to flush the fixture.
一旦使用者进入感应器的感应有效范围后离开，冲水阀螺线管就启动一次冲水冲刷卫生洁具。
