均衡的

The results indicted that the deformation range by the first pressure wave is proporational with impact velocity. 研究结果表明：泡沫铝试样在不同的冲击速度加载下变形量大小不同，随着冲击速度的增大，试样达到该冲击速度下的最大变形所需的压缩次数（冲击波的反射、透射过程）减少。

Propor selection of precipitating agent will help solve such technical problems as defatness, purification, separation,dryness,etc. 选用合适沉淀剂解决了茶皂素提取过程中的脱脂、纯化、分离和干燥等难题。

In this paper, the author points but the way how to obtain Masson Pine area by means of Aerial Photo-Interpretation at the plot of area propor tion. Thus providing necessary basis for the scale of comprehensively utilizing plant of Masson Pine root. 本文利用航空象片成数点判读与地面样点(或二类调查固定样地资料)检查纠正判读中错误的方法获得总体内马尾松面积,并结合必要的地面马尾松根根量的调查,取得总体内马尾松根资源的数据,为建立马尾松松根综合利用企业的规模提供必要的依据。

Keywords Flashing butt welding machine;PC control;Electrohydraulic propor tional valve;Flashing system; 闪光对焊机;PC控制;电液比例阀;烧化系统;