central impact

Central impact tests between concrete blocks are performed by a pendulum test system and a drop weight test system .

采用单摆和垂直轨道装置进行了混凝土块体对心碰撞试验。

The anterior chest wall of dogs were impacted by BIM-II type impact machine , the central impact part was located by ultrasound machine , it was in accord with the superficial area where left ventricular long axis view was .

采用BIM-Ⅱ型水平撞击机撞击犬胸前区，由超声定位，选择左室短轴切面对应的体表位置确定为撞击中心点，卧位准静态撞击。

The Analysis of the Trade between Xinjiang and Central Asia Impact on Xinjiang 's Economic

新疆与中亚贸易对新疆经济增长的影响分析

US Military Entry into Central Asia and Its Impact

美国军事力量进入中亚及其影响

Changing of Eolian Soil Fertility in Central Taklimakan Desert Under Impact of Artificial Vegetation

塔克拉玛干沙漠腹地人工植被土壤肥力变化