gōng chéng shī / tiáo zhěng / le / chǐ lún chuán dòng / de / cān shù / yǐ / tí gāo / shè bèi / de / xiào lǜ工程师调整了齿轮传动的参数,以提高设备的效率。The engineer adjusted the parameters of the gear drive to improve the equipment's efficiency.