Tauira

Tātai tātai raraunga

Taitara-taitara
1 Ko te Widepr Waea Copepr i hangaia i te taumaha me te roa o te hurihanga whakawhiti roa L / kg L1 = 143m / (d * d)
2 Wide tapawha- Taumaha me te roa o te whakawhitinga whakawhiti roa g / l Z = (t * w-0.2146 * t2) * 8900 * 1000/1000000
3 Rohe whakawhiti-waahanga o te waea tapawha mm2 S = t * w-0.2146 * t2
4 LitZ Waea-Taumaha me te Raarangi Whakawhitinga Rawa L / kg L2 = 274 / (D * d * 2 * whenu)
5 Te ātete o te waea tapawhā Ω / l R = r * l1 / s
6 Puka 1: Te ātete o te waea litz Ω / l R20 = RT × α × 103 / L3
7 Puka 2: Te ātete o te waea litz Ω / l R2 (ω / km) ≦ r × 1.03 ÷ s × 1000
L1 Roa (m) R1 Te ātete (ω / m)
L2 Te roa (m / kg) r 0.00000001724ω * ㎡ / m
L3 Roa (km) R20 Te aukati i te kaiwhakahaere mo ia 1km i te 20 ° C (ω / km)
M Taumaha (kg) Rt Te ātete i te t ° C (ω)
D Diameter (mm) αt Te nuinga o te pāmahana
Z Taumaha (G / M) R2 Te ātete (ω / km)
T Matotoru (mm) r Te ātete o te 1 mita kotahi te tohu waea parahi
W Whanui (MM) s Ko nga whenu (PC)
S Rohe whakawhiti (MM2)