常見例句雙語例句The principle and the design method of a adjustable voltage unit for the heating transformer in electrical upsetting machine is introduced.系統(tǒng)中包含一個電鐓機(jī)加熱變壓器設(shè)計和研制的交流調(diào)壓單元，本文具體介紹了交流調(diào)壓的原理，電路的設(shè)計思想及其特點(diǎn)。 返回 electrical upsetting machine