chē jiān / gēng huàn le / lǎo jiù de / diàn dòng hú lu / qǐ diào / zuò yè / de / xiào lǜ / hé / ān quán xìng / dōu / yǒu suǒ / tí gāo

车间更换了老旧的电动葫芦，起吊作业的效率和安全性都有所提高。

The workshop replaced its old electric chain pulley block, improving both the efficiency and safety of lifting operations.