An instrument based on microcomputer and grating tensor can be used to test and analyse the gear-driven error of various ratio gear trains on the spot.

用微型计算机和光栅传感器组成的仪器可在现场测量并分析各种传动比齿轮传动链的传动误差。

youdao

Supporters say driverless cars will be safer than vehicles driven by error-prone humans.

FORBES: Driverless Cars: Coming to a Road Near You?

For technology to advance, the legal and regulatory system will need to accept that driverless cars sound risky only compared with cars driven by error-prone humans.

WSJ: Crovitz: The Car of the Future Will Drive You