Ƙayyade dabara don ƙididdige tsayayyen tsayin raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman raƙuman ruwa tare da shim ƙare.

Tsawon tsayin $H_s$ shine ƙayyadaddun jiki na girman axial na bazara ƙarƙashin matsakaicin nauyi. Don maɓuɓɓugar ruwan raƙuman crest-to-crest tare da juyawa $N $ da ƙare shim, dabarar ita ce $ H_s = (N + 1) · t$, inda $t$ shine kaurin kayan. Koyaya, jurewar masana'anta akan kauri mai lebur waya (yawanci $\pm 0.0005$ inci) kuma dole ne a yi la'akari da tsayin kalaman. A hakikanin gaskiya, tsayin 'ka'idar' yana da wuya a samu saboda rashin lahani na raƙuman ruwa; don haka, injiniyoyi suna amfani da tsayin 'aunawa' wanda sau da yawa sau 1.1 ƙimar ka'idar. Idan aikace-aikacen yana buƙatar madaidaicin tasha mai wuya, ƙarshen shim ɗin dole ne ya zama ƙasa zuwa takamaiman juriya na daidaici, sau da yawa tsakanin $0.002$ inci TIR (Ƙarar Karatu).