二次多項式

二 = 一 : Mnemonic symbol: a capacitor, because the two strokes remind me of the symbol in electrical drawings. Albert Einstein (Ø) is experimenting with a capacitor (二) in the space station's bathroom (Ø4). He finds that it's uncomfortable to discharge a capacitor using two flutes (一).

次 = 冫 + 欠 : Mnemonic symbol: the cube, as in words involving 三次 relate to "cubic equations" or "cube (third power)". The King of Chu (c) pulls a popsicle (冫) out of the cube (次) in the space station's bathroom (Ø4) and leaves an IOU note (欠) on the cube.

多 = 夕 : Mnemonic symbol: Immanuel "Many" Kant.

Many (多) and Doggy Dog (du) have great fun chasing a bat (夕) in front of the observatory (o1). After a while there are two bats (多), and it's not so easy to chase them any more. Suddenly there are more and more (多) bats! Now Many and Doggy Dog experience what it is like to be chased for a change.

项 = 工 + 页 : Mnemonic symbol: a necklace (项). Marie Curie (xi) lost her necklace in the anglepod's bathroom (ang4) and tries to get it out of the toilet again. Marie jotted down some calculations (项) on a sheet of paper (页) and uses a steel beam (工) as a lever to get his necklace out by putting the lever at the exact right position and the sheet of paper on top of the other side of the lever.

项 = 工 + 页 : Mnemonic symbol: a necklace (项). Marie Curie (xi) lost her necklace in the anglepod's bathroom (ang4) and tries to get it out of the toilet again. Marie jotted down some calculations (项) on a sheet of paper (页) and uses a steel beam (工) as a lever to get his necklace out by putting the lever at the exact right position and the sheet of paper on top of the other side of the lever.

式 = 工 + 弋 : I'll use a specific style as mnemonic symbol: 哥特式, gothic.

Sherlock Holmes and the goth are celebrating a Viking festival in the space station's bathroom. They don't have trunks to throw around, so they use a steel beam. They also celebrate by practising archery. In zero gravity it is easy for them to set one world record after the next.