double entry

Objective To evaluate the feasibility and accuracy of real-time three-dimensional echocardiography (RT-3DE) full volume and X-plane for quantifying the volume of left ventricular (LV) models.

目的探讨实时三维超声心动图(RT-3DE)全容积成像及双平面法测量左心室容积的可行性和准确性。

In order to reduce the vibration of the engine and the vibration it arose,Analyze the great vibra- tion of four cylinders diesel engine is analyzed,the double balance shaft is designed,and then the effect of vi- bration reduction is tested.

为了减少发动机自身及其造成的振动,对4112型四缸柴油机振动大的问题进行了分析,设计了双平衡轴机构,然后对其减振效果进行了测试。

This paper firstly introduces the conception of A/B double-plane,then detailedly introduce the necessity of construction and the useable hiberarchy, sketches the future of double-plane, and goes deep into the meaning of double-plane.

本文从A/B双平面概念入手,详细介绍双平面在传送网中建设的必要性及可应用层面,勾画出双平面传送网的远景,剖析双平面引入的意义。