另
=
力
+
口
:
Mnemonic symbol: to separate two liquids, one can use a distiller.
In engine's bathroom ((e)ng4) Li Qingzhao (li) wants to distill a liquor (另) out of mandarins (口). She puts the mandarins in the distiller and hits the power button (力).
用
=
丨
+
月
:
Yu the Great hurt her leg when she slipped in the engine's bathroom. The moon helps her to splint her leg using the bathroom's first aid kit and a dinosaur bone.