Mnemonic rau kev txhaj tshuaj molding tshuab teeb, "Kev txhaj tshuaj nrawm rau kev ua kom tiav, siab thiab lub sijhawm rau kev tswj cov shrinkage, pwm kub rau qhov loj me me, cov khoom sib xyaw - saib rov qab siab, tsis txhob muaj cua nkag thiab hlawv cov cim, qeeb ntawm kev sib cais thiab cov cim huab cua , maj...
Nyeem ntxiv