1·The new device emits a powerful circular column of light.
这个新装置发出一束强烈的环形光柱。
—— 《柯林斯英汉双解大词典》
2·It is usually best to pass a filter during registration, even if the current implementation only emits a certain type of notification.
通常，最好是在注册过程中来传递过滤器，即使当前实现只发出某种特定类型的通知。
3·But even the brightest city in America, Las Vegas, emits only about a ten-thousandth as much light as the sun shines upon the same area.
但即使是美国最亮的城市拉斯维加斯，其发出的亮度也仅只及太阳光在这块区域反射亮度的万分之一。
4·Then, when the first object "emits" the signal (due to an internal change in state), the second object "catches" this change and reacts appopriately.
然后，当第一个对象“发出”信号（由于状态的内部变化）时，第二个对象“捕获”该变化并作出适当的反应。
5·The "harder" the phone has to work to maintain a cellular connection, the more radiation it emits.
手机保持通话连接越难，它发出的辐射就越多。