锅炉铁板 meaning in Chinese

boiler iron

I had the big door sheathed with boiler iron two weeks ago, and triple-locked-and i've got the keys .
我已经在两个星期以前用锅炉铁板把大门钉上了一层，并且上了三道锁--钥匙在我手里哪。
I had the big door sheathed with boiler iron two weeks ago , and triple - locked - and i ' ve got the keys
我已经在两个星期以前用锅炉铁板把大门钉上了一层，并且上了三道锁- -钥匙在我手里哪。
" because i had its big door sheathed with boiler iron two weeks ago , and triple - locked - and i ve got the keys .
“因为两周前我已经用锅炉铁板把大门钉上了一层，上了三道锁钥匙由我保管。 ”