名词
中文翻译：备用发射机
同义词：
['standby power', 'backup transmitter例句：1. The engineers are standing by to fix the faulty equipment.（工程师们随时待命，准备修理有故障的设备。）2. The police standby at all times for emergencies.（警察随时待命，应对紧急情况。）']
例句：
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1. The engineers are standing by to fix the faulty equipment.
工程师们随时待命，准备修理有故障的设备。
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2. The police standby at all times for emergencies.
警察随时待命，应对紧急情况。
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3. The company has a standby generator in case of power outages.
公司备有备用发电机，以防停电。