We also ask you to ensure that your mobile phones are switched off or turned to vibrate mode.
为了会议的顺利进行，请关闭您的手机，或把手机调到震动状态。
Understanding the mode shape and how the structure will vibrate when excited helps the design engineer to design better structures.
理解模态振型和受激结构如何振动，将有助于设计工程师设计出更优的结构。
A comparison of shakeout machine was made between the vibrate shakeout machine and the DIDION's rotary drum. The principle and mode of work and pyactical experience of the DIDION2000 is discussed.
本文对滚筒及振动落砂设备的有关性能作了比较，并就DIDION2 0 0 0双层落砂滚筒的原理、工作方式和使用情况作了详细的论述。
A comparison of shakeout machine was made between the vibrate shakeout machine and the DIDION's rotary drum. The principle and mode of work and pyactical experience of the DIDION2000 is discussed.
本文对滚筒及振动落砂设备的有关性能作了比较，并就DIDION2 0 0 0双层落砂滚筒的原理、工作方式和使用情况作了详细的论述。
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