HSK 5
Zhèzhǒng yǐnxìn duì wēndù biànhuà shífēn mǐngǎn.
This type of fuze is very sensitive to temperature changes.
HSK 6
Zhàdàn shàng de yǐnxìn bèi tíqián yǐnbào.
The fuze on the bomb was triggered prematurely.
HSK 7-9
Gōngbīng xiǎoxīn-yìyì de chāichú le yǐnxìn.
The engineer carefully removed the detonator.
