相当于或大于

相 = 木 + 目 : Mnemonic symbol: I take "eye" and "tree" as resembling an ent, an alive tree. Xi Shi (xi) portrays (相) an ent (相) in the anglepod's bathroom (ang4). Unfortunately she's really bad at painting, and her portrait resembles more a Christmas tree (木). The Eye of Providence (目) enters and, just from the shape of the Christmas Tree, instantly recognizes its own portrait (相).

当 = 小 + 彐 : This character looks like an angry pitbull. 小 forms the eyes and maybe nose, and 彐 are the dangerous teeth.

当 = 小 + 彐 : Don Quixote opposes a dangerous pit bull in front of the anglepod, and he tries to calm him down with a daisy.

当 = 小 + 彐 : This character looks like an angry pitbull. 小 forms the eyes and maybe nose, and 彐 are the dangerous teeth.

当 = 小 + 彐 : Don Quixote opposes a dangerous pit bull in front of the anglepod, and he tries to calm him down with a daisy.

于 = 亅 + 二 : Mnemonic symbol: prepositions (in, at, on, to, ...) are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.

Yu the Great (于) was assigned to repair the electronics of the space station's kitchen (Ø2), but instead he was snacking honey from a honey jar (于). Unfortunately his capacitor (二) got stuck in the honey and now he has to use a crowbar (亅) to lever it out.

或 = 一 + 口 + 戈 : In observatory's bathroom, Osvaldo Farrés plays his famous song "Quizás, Quizás, Quizás" (Perhaps, Perhaps, Perhaps) on a flute. Helga Horse listens and doesn't know whether she should maybe give him her mandarin as reward, or perhaps stab him with a spear.

大 = 一 + 人 : The big (大), huge (大) robot (mnemonic symbol for 大) is working out in the ashram's bathroom (a4). He's lifting a flute (一) to which Don Quixote (d) and Neanderthal man (人) are clinging.