图 4-9 中使用的机械式继电器, 可以用电子开关来代替.The mechanical relays , which have been assumed in Fig . 4 - 9 , can be replaced by electronic switches.用继电器操作的一种可视信号或音响信号装置, 用以指示有关电路的情况.A visual or audible signaling device , operated by re...
a sentence with a determinate meaning具有确定意义的句子Objective: This HPLC method is to determinate the purity of benzo - macrocyclotetraamide NaFe.目的: 采用高效液相色谱法测定苯并大环四酰胺钠铁的纯度.For statically determinate frames , the stress - res...
The tiny kitten approached the enormous bear and let out a purr and a mew.那猫却走近体大腰圆的灰熊,冲它“喵呜“,“喵呜“地叫着.Just that I'm going to lose this mew job.只不过我这份新工作要保不住了.The tool with the main est apiculture is beehive and mew ...
That afternoon, Juanita Haydock dropped in to brighten Carol.那天下午, 久恩尼塔·海多克跑来串门,让卡萝尔解解闷.Juanita Nunez appeared on the verge of another heated reply.胡安尼塔·努涅兹似乎又准备来一次狠狠的回击.Gaby : Shut it . Juanita and Celia found these und...