The grand piano has been replaced with a small, inelegant electric model.三角钢琴被代之以一架粗鄙的小电子琴。We used a crane to lift the piano into the theatre.我们使用起重机将钢琴搬进剧场.She is going to give a piano recital.她即将举行钢琴独奏会.The six finalis...
In reality, there are leakage resistances and stray capacitances and to everything.但在实际应用中, 它们与其它部分之间会存在漏泄电阻和寄生电容.The primary function of sealing gasket is to prevent gas from leakage.密封垫圈的主要作用是防止气体泄漏.The packing is also...