现时的

Therefore, took the precision machinery processing and difficult to process the material processing one kind of new technology, the vibration cutting already gradually seeps to many kinds of machine-finishing domain, the vibration drills truncates compares the successful application example.

因此，作为精密机械加工和难加工材料加工的一种新技术，振动切削已经逐步渗透到多种机械加工领域，振动钻削就是比较成功的应用实例。

Signal multiplier spectrophotometry was used for the determination of baicalin, clorogenic acid, phillyrin and pH variation when shuanghuanglian with 5 kinds of intravenous solution and penicillin injection was mixed.

本实验应用系数倍率法测定双黄连粉针与5种输液及青霉素配伍时黄芩苷、绿原酸、连翘苷的含量，并考察pH值变化。