gōng chéng shī / gēng huàn / le / lǎo huà / de / chuán shū shè bèi / shù jù chuán shū / sù dù / míng xiǎn / tí gāo / le

工程师更换了老化的传输设备，数据传输速度明显提高了。

The engineers replaced the aging transmission equipment, and the data transfer speed improved noticeably.