均衡的

The results indicted that the deformation range by the first pressure wave is proporational with impact velocity. 研究結(jié)果表明：泡沫鋁試樣在不同的沖擊速度加載下變形量大小不同，隨著沖擊速度的增大，試樣達到該沖擊速度下的最大變形所需的壓縮次數(shù)（沖擊波的反射、透射過程）減少。

Propor selection of precipitating agent will help solve such technical problems as defatness, purification, separation,dryness,etc. 選用合適沉淀劑解決了茶皂素提取過程中的脫脂、純化、分離和干燥等難題。

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數(shù)點判讀與地面樣點(或二類調(diào)查固定樣地資料)檢查糾正判讀中錯誤的方法獲得總體內(nèi)馬尾松面積,并結(jié)合必要的地面馬尾松根根量的調(diào)查,取得總體內(nèi)馬尾松根資源的數(shù)據(jù),為建立馬尾松松根綜合利用企業(yè)的規(guī)模提供必要的依據(jù)。

Keywords Flashing butt welding machine;PC control;Electrohydraulic propor tional valve;Flashing system; 閃光對焊機;PC控制;電液比例閥;燒化系統(tǒng);