standard emitter

例句：

1. 1. The standard emitter is used to measure the intensity of light.
   标准发射器用于测量光的强度。
2. 2. The standard emitter is a crucial component in many electronic devices.
   标准发射器是许多电子设备中至关重要的组件。
3. 3. The standard emitter is widely used in scientific research due to its high precision and stability.
   标准发射器由于其高精度和稳定性，在科学研究中被广泛使用。