speed tester

• 测速仪

speed tester的用法和样例：

例句

1. Investigators said the plane's speed sensors gave conflicting readings to the computers, which caused the plane to stall or fly dangerously fast.
   调查者说飞机的测速仪向计算机传输了相冲突的信息，引起飞机发动机停转或高危险快速飞行。