Ka jingkhein ia ka jingheh jong u pipe
Sngewbha pyni ia ki jingthew ha ki milimeter
D1 - ka jingheh hapoh jong u pipe
D2 - ka jingheh ba shabar jong u pipe
L - Ka jingjrong jong u pipe
Ka prokram kan iarap ban khein ia ka jingbun jong ka um ne kiwei kiwei ki um ha ki pipe.
Ban khein ia ka jingheh jong ka kor pynkhluit, pyndap ha ka jingmih ia ki jingheh jong ki radiator bad ka boiler pynkhluit.
Ia kane ka jingtip la ju pyni ha ka passport jong ki mar.
Kum ka jingmih, ka prokram kan khein ia ka jingheh jong ki pipe baroh, ka jingheh jong ka bad ka jingheh jong ki pipe ha ka shi linear meter.
Ka jaka jong ka sla ka lah ban long kaba myntoi ha kaba khein ia ka jingbun jong ka rong kaba donkam.
Na ka bynta ban khein, pyni ia ka jingheh hapoh bad shabar jong u pipe bad ka jingjrong baroh jong u pipe.
Baroh ki jingthew la pyni ha ki milimeter.
Ia ka jingheh jong ki pipe la khein da kaba pyndonkam ia ka formula . V=π*R1*R1*L
Ia ka jingheh jong ka sla jong u pipe la khein da kaba pyndonkam ia ka formula . P=2*π*R2*L
R1 - ka jingheh jong u pipe ba shapoh
R2 - ka jingheh jong u pipe ba shabar
L - ka jingjrong jong u pipe