瞄准手

wǒ men de rén děng dào huǒ pào miáo zhǔn shǒu zài pào yǎn diǎn rán le huǒ chái cái xíng dòng

我们的人等到火炮瞄准手在炮眼点燃了火柴才行动。

Our persons took measures until the gunner lit their matches in the cannon port.