在实践中有三种方法来获得相位差.In practice there are three methods of accomplishing this phase difference.本论文的研究对象是相位差法超声波流量计.The intention of this article is phase difference ultrasonic flowmeter.信噪比高, 相位差小, 具有较高的动态分辨率.High signal to ...
He had long unkempt hair and a stubbly chin.他的头发又长又乱，脸上胡子拉碴。There he stood: hair in wild tangles, dark stubble shadowing his chin.他站在那儿，头发乱成一团，下巴上一片黑胡茬。She tilted her face to kiss me quickly on the chin.她侧过脸飞快地在我下巴上亲了一下。...
He pleads for sanity in a lunatic world.他祈求在这混乱的世界里仍能保持头脑清明。His behaviour was so strange that I began to doubt his sanity.他行为怪异，我有点怀疑他是否神智正常。She managed to keep her sanity throughout the ordeal.在那场磨难中她始终保持神志正常....
The duty of a godmother is to make you learn your catechism.教母的职责是帮助你学好教义问答.Warm, vital piety is one of the distinguishing marks of the catechism.热情而有活力的敬虔是这个教理问答独特的标记之一.What characteristics of God can we learn from this...