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.
工
=
二
+
丨
:
Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam. In front of the engine ((e)ng1), Gitta Giraffe (gu) is doing some hard work: She's stacking a capacitor (二) on a dinosaur bone (丨) on a capacitor (二). She's not very successful, but then she gets the idea to use steel beams (工) as support.
Maud Younger (y) is practicing her shooting (弋) skills with a bow in the bathroom of the space station (Ø4). 弋 just looks like a bow with an arrow, which is going to be shot to the left hand side. There's even a feather on the arrow at the right hand end.
to test / to try / experiment / examination / test
试
=
式
+
讠
:
Sherlock Holmes is doing an eye examination with the goth in the space station's bathroom. Sherlock set up a table with differently sized letters on an advertising column and has the goth read out the letters.