中空玻璃

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.

空 = 工 + 穴 : Mnemonic symbol: an air conditioner

空 = 工 + 穴 : In front of the engine, Karl Koala found some very special cave paintings. Using steel beams he constructs a protective cover. He also installs air conditioning to make the best environment possible to preserve the cave paintings.

玻 = 王 + 皮 : In front of the observatory (o1), Beelzebub (b) sold a set of beer glasses (玻) to Martin Luther King (王) for a very good price. As Martin wants to leave Beelzebub tells him that by buying the glasses, he automatically agreed to buy the very expensive drip mats made from a cow's hide (皮).

璃 = 王 + 离 : Martin Luther King (王) and Li Qingzhao (li) want to color some glass just inside the space station's entrance (Ø2). They attach their glass plate to the space station's centrifuge (离) and spin-coat the glass surface so that it gets a very nice glaze (璃).

璃 = 王 + 离 : Martin Luther King (王) and Li Qingzhao (li) want to color some glass just inside the space station's entrance (Ø2). They attach their glass plate to the space station's centrifuge (离) and spin-coat the glass surface so that it gets a very nice glaze (璃).

璃 = 王 + 离 : Martin Luther King (王) and Li Qingzhao (li) want to color some glass just inside the space station's entrance (Ø2). They attach their glass plate to the space station's centrifuge (离) and spin-coat the glass surface so that it gets a very nice glaze (璃).