The physical property of piezoelectric ceramic; performance reference and empirical principle about transducer and array.

介绍压电陶瓷的物理特性，介绍有关换能器和基阵的性能参数和试验原理。

youdao

As of this writing, the current version is still a beta, and even after it's released commercial or open source projects may improve performance over the reference implementation.

在撰写本文的时候，当前版本仍然是测试版，只有当它作为商业或开放源码项目发布以后，它的性能才可能优于参考实现。

youdao

It provides valuable reference information that you can refer to when you develop, analyze, and troubleshoot performance issues in your MDM system.

同时提供有价值的参考信息，在开发、分析和解决MDM系统性能问题时可以参考。

youdao

Consider focusing on the YTD performance category as an initial reference point to identify underperforming asset classes for now.

FORBES: Make The Most Out Of Your 401(k) Contributions Right Now

Most of the music was unfamiliar to North Koreans, who would never have been to a performance that did not include some adulatory reference to the Workers' Party, its founder Kim Il Sung and his son and successor as supreme leader, Kim Jong Il.

ECONOMIST: Cultural diplomacy

Under the framework, reference groups will be required to identify how clinical performance should be measured.

BBC: Hospital doctors to come under scrutiny