An industrial-strength thing is very strong — first of all, strong enough for factories and heavy work, not for ordinary home use. Industrial-strength cleaner, glue, or coffee is the fierce version, made for a job that would defeat the supermarket bottle.

An industrial-strength thing一樣 industrial-strength 的東西 is very strong非常強 — first of all首先是 for factories and heavy work對工廠和粗重的活來說 strong enough夠強， not for ordinary home use不是給一般家用的。 Industrial-strength cleaner工業強度的清潔劑、 glue膠水、 or coffee或咖啡， is the fierce version是兇猛版， made for做來對付 that would defeat the supermarket bottle會讓超市瓶裝貨投降的 a job工作。

Though actually, people now use it as a joke for anything that feels too much: industrial-strength perfume, industrial-strength headache pills, even an industrial-strength sulk. In that stretched use it is informal and humorous; you are not really talking about a factory.

Though actually不過其實， people人們 now現在 as a joke開玩笑地 use it把它用在 for anything that feels too much任何感覺「太超過」的東西上： industrial-strength perfume工業強度的香水、 industrial-strength headache pills工業強度的頭痛藥， even甚至 an industrial-strength sulk工業強度的鬧脾氣。 In that stretched use在那種被拉開的用法裡 it它 is informal and humorous是非正式、帶幽默的； you你 are not really talking about並不是真的在講 a factory工廠。

Used of a real product, it is more literal and a bit of advertising talk. Either way, the idea is the same: stronger than you expected, sometimes stronger than you wanted.

Used of a real product用在真的產品上時， it它 is more literal比較是字面意思， and a bit of advertising talk也帶點廣告腔。 Either way兩種用法， the idea意思 is the same都一樣： than you expected比你預期的 stronger更強， sometimes有時候 than you wanted比你想要的 stronger還強。