例句與造句

1. Comparing with conventional electromagnetic transformer , piezoelectric transformer has many advantages such as compact volume , high step - up ratio , non - flammability and none - electromagnetic pollution , which is an indispensable part in the electronic information system
   壓電變壓器相對于傳統(tǒng)的電磁變壓器具有體積小、重量輕、升壓比高、不易燃、無電磁污染等特點,較好的解決了電磁壓電變壓器體積大、電磁污染嚴重等缺陷,是電子信息系統(tǒng)中不可或缺的重要部件。
2. It's difficult to find step-up ratio in a sentence. 用step-up ratio造句挺難的