Lub tes tsho Coupling

Vim muaj kev siv sib txawv, peb xav tau qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, yog li lub tes tsho couplings siv rau kev sib txuas txuas txuas ntxiv.Muaj cov txuas txuas txuas ib nrab thiab tag nrho cov txuas txuas txuas, qhov sib txawv ntawm lawv tsuas yog qhov sib txuas ntawm ib nrab muaj qhov nruab nrab nres ntawm nruab nrab ntawm cov txuas.Feem ntau couplings ob kawg yog tib co couplings, xws li R25, R32, R38, T45, T51, thiab lwm yam .While tej zaum cov neeg xav tau crossover couplings ua hauj lwm, piv txwv li, ib kawg yog R32 thiab lwm kawg yog R38, tab sis qhov tseem ceeb tag nrho cov couplings yog poj niam. threads ntawm ob kawg.