鋼鐵工業

钢 = 冈 + 钅 : Guy Fawkes (g) is looking for a steel (钢) well on a mound (冈) in front of the anglepod (ang1). Multiple times he sticks his golden harpoon (钅) into the earth until finally the liquid steel bursts out of the earth like oil out of a drill hole.

铁 = 失 + 钅 : Mother Teresa (ti) is looking for a new iron weapon (铁) to defend herself. So far she was using a golden harpoon (钅), but the gold is just too soft. Inside of the elevator (e3) she is searching a lost+found box with her golden harpoon for an iron weapon (铁).

铁 = 失 + 钅 : Mother Teresa (ti) is looking for a new iron weapon (铁) to defend herself. So far she was using a golden harpoon (钅), but the gold is just too soft. Inside of the elevator (e3) she is searching a lost+found box with her golden harpoon for an iron weapon (铁).

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam.

Gitta Giraffe (gu) is working a shift in front of the engine ((e)ng1). Her job is to melt dinosaur bones (丨) so that they can be disposed off easily. To melt the bones, she is shorting a huge capacitor (二) with a steel beam (工) which consequently heats up to a bright glow. Using the glowing hot steel beam she can melt the dinosaur bone easily.

I can't help but see a bullfrog in 业. Maud Younger finds that the climate in the elevator's bathroom are perfect for her new business: growing bullfrogs.