例句與造句

1. Before installation , please confirm that the voltage / frequency of the power is up to the voltage / frequency marked on the namplater of the product
   安裝前請(qǐng)確認(rèn)所使用的電源電壓/頻率與產(chǎn)品銘牌所標(biāo)示的電壓/頻率是否相符。
2. It's difficult to find frequency mark in a sentence. 用frequency mark造句挺難的