Therefore, a LRC filter is designed and the harmonic of switch frequency is eliminated effectively.为此设计了LRC滤波器,有效地抑制了输出电流中开关频率处的谐波成分.FM programs recording, LRC synchronizing function.调频节目录制,歌词同步功能....
call on的近义词有：call on, see, visit, drop in。下面这些动词或词组均含有"拜访，访问"的含义：call on：社交上的正式用语，指无目的、礼节性的短暂拜访，访问者与被访问者之间一般只有社交或公务关系。see：常用词，含义广泛，既可指接受他人来访，又可指去访问他人。visit：正式用词，强调出于工作需要的访问，也指亲戚朋友间的看望。drop in：多指在计划之外或事先未打招呼的偶然、顺便访问。也可指参观...
Is there anyone who knows what a gram of applesauce look like?谁知道1克苹果酱到底有多少 吗 ?With gram - negative organisms, depletion of the lipopolysaccharide layer with EDTA greatly facilitates TO uptake.对革兰氏阴性的生物体, 用EDTA损耗多脂糖层很容易促...