临界

lín jiè diǎn

临界点

critical point

lín jiè sù dù

临界速度

critical velocity

lín jiè pín lǜ

临界频率

critical frequency

lín jiè yā lì

临界压力

critical pressure

bìng huàn rén shù jí jiāng dá dào lín jiè guān kǒu

病患人数即将达到临界关口。

The number of people with the disease is reaching a critical threshold.