中流砥柱

nà wǔ wèi yǒu zhēn cái shí xué de gōng chéng shī shì zhè ge xiǎo chǎng de zhōng liú dǐ zhù

那五位有真才实学的工程师是这个小厂的中流砥柱。

The five engineers of real learning are the mainstays of the small factory.

fā huī zhe zhōng liú dǐ zhù de zuò yòng

发挥着中流砥柱的作用

act as a pillar of strength

jūn duì zuò wéi bǎo wèi guó jiā de zhōng liú dǐ zhù shì shè huì ān dìng de jiān qiáng zhù shí

军队作为保卫国家的中流砥柱，是社会安定的坚强柱石。

As the mainstay of the national defense, military is the pillar of national safety.