加固

yòng zhòng zhí shù de fāng fǎ lái jiā gù hé dī

用种植树的方法来加固河堤

plant trees to strengthen the river banks

shuāng miàn jiā gù

双面加固

reinforce on both sides

jiā gù gōng shì

加固工事

improve defence works

jiā gù chéng bǎo

加固城堡

fortify a castle

jiā gù qiáo liáng

加固桥梁

secure a bridge

nà xiē hùn níng tǔ shì yòng gāng jīn jiā gù de

那些混凝土是用钢筋加固的。

That concrete is strengthened with steel beams.

zhè fáng zi xū yào jiā gù yī xià

这房子需要加固一下。

The house needs some reinforcement.