high-step slope高台阶边坡

high-step discharge高阶段排土

high-step surging balance高阶振荡天平

high-ranking step-differential高阶逐差

high-speed step out relay高速失步继电器

instantaneous high-temperature step quenching瞬时高温分级淬火

high step-up ratio高升压比

high-temperature one-step firing高温一次烧成

high eed step-out relay高速失步继电器