鄭國渠

郑 = 关 + 阝 : James II of England (zh) and Zheng He (郑) agreed to build a pipeline (郑) connecting their nations, but it runs through the engine's bathroom ((e)ng4). The emperor (阝) is very annoyed by the pipeline and every time he visits the bathroom he'll push its off button (关).

国 = 囗 + 玉 : Mnemonic symbol: a nation's flag. Let's say the Chinese flag.

In the observatory's kitchen (o2) Gitta Giraffe (gu) is practising her ballet performance. She got a whole crate (囗) full of jade bracelets (玉) and flags (国) and fixed one flag to each jade bracelet. This makes a perfect combination for throwing the ring with the flag waving behind it and catching the ring again after a few pirouettes.

渠 = 氵 + 巨 + 木 : Cupid (qu) and the Leshan Buddha (巨) are planting Christmas trees (木) just inside the space station's entrance (Ø2). Leshan is planting the trees and carving the irrigation canals (渠) into the floor, while Cupid flies around with bottled water (氵) to fill up the canals and water the trees.

渠 = 氵 + 巨 + 木 : Cupid (qu) and the Leshan Buddha (巨) are planting Christmas trees (木) just inside the space station's entrance (Ø2). Leshan is planting the trees and carving the irrigation canals (渠) into the floor, while Cupid flies around with bottled water (氵) to fill up the canals and water the trees.