Cov fwj iav tau muab cais los ntawm cov duab

(1) Kev faib tawm los ntawm cov duab geometric ntawm cov iav fwj
① Hloov cov iav fwj. Qhov hla ntawm lub raj mis yog puag ncig. Nws yog lub raj mis siv feem ntau uas muaj lub zog siab.
② fwj dej ci square. Cov ntoo khaub lig ntawm lub raj mis yog square. Hom lub raj mis no tsis muaj zog dua li cov raj mis thiab ntau nyuaj rau kev tsim khoom, yog li nws tsis tshua siv.
③ Cov iav fwj. Txawm hais tias tus ntoo khaub lig seem yog puag ncig, nws yog nkhaus hauv qhov siab. Muaj ob hom: concave thiab convex, xws li Valase Ntaus thiab Gourd hom. Cov style yog tshiab thiab nrov heev nrog cov neeg siv.
④ oval iav fwj. Cov ntoo khaub lig yog oval. Txawm hais tias muaj peev xwm me me, cov duab yog cov cim thiab cov neeg siv kuj nyiam nws.

(2) kev faib tawm los ntawm kev siv sib txawv
Imm fwj rau cawv. Cov zis ntawm cov cawv yog qhov loj heev, thiab yuav luag txhua tus ntawm nws tau ntim rau hauv cov iav fwj, feem ntau yog puag ncig iav fwj.
② fwj txhua hnub nqa khoom txhua hnub. Feem ntau yog siv rau pob ntau yam khoom siv me me, xws li tshuaj pleev ib ce, kua qaub, thiab cov raj mis thiab lub raj mis tseem muaj ntau haiv neeg.
③ Cov kaus mom ntim. Cov zaub mov kaus poom muaj ntau hom thiab cov zis loj, yog li nws yog kev lag luam tus kheej. Dav-qhov ncauj fwj feem ntau siv, nrog lub peev xwm ntawm 0.2-0.5l.
④ cov raj mis iav. Cov no yog fwj iav siv los ntim cov tshuaj, suav nrog cov raj nplaim xim liab uas muaj lub peev xwm ntawm 100-1000ml, thiab kaw cov ampoules kiag li.
⑤ tshuaj cheek reagles. Siv rau pob ntau yam tshuaj lom neeg cov tshuaj lom neeg, lub peev xwm feem ntau yog feem ntau 250-1200ml, thiab lub raj mis yog feem ntau ntswj lossis hauv av.