| 摘要 |
A container having affixed thereto an ultrasonic transducer, including a connection for electrically linking the transducer to electronic circuitry located outside the container. Flexible and semi-rigid containers having rigid structures surrounding the signal path of an ultrasonic transducer are also provided. In addition, adaptors are disclosed for use in connecting an ultrasonic transducer to a container. Such adaptors can include a rigid tubular member, a tubular outlet connected to the tubular member for draining liquid from a container, and a seat for engaging an ultrasonic transducer.
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