usability testing的用法和样例：
例句
- Ballot designs should pass usability and countability tests before being shown for final approval to the parties invested in the election.
选票设计必须通过使用性及计算性测试，才能交由投入选举的各方进行最后认可。 - This study based on the methods of usability engineering, is aimed to investigate the behavior of professional theodolite users.
本研究采用使用性方法建立评估之程序，调查专业熟手在使用经纬测量仪之行为。
