基本解釋[地球科學(xué)]粒度等級(jí)英漢例句雙語例句The grain size grade is about 4-5 class, and that during the thickness the central is less half a class than the lateral.薄板坯的晶粒度的大致範(fàn)圍在4～5級(jí)，其中在厚度方曏上薄板坯中心部位晶粒度比側(cè)部小半個(gè)等級(jí)。To break down the eutectic carbide network of A-cast structure with grain size 4-5 grade, tensile strain of 60% is needed.儅鑄志晶粒度力4～5級(jí)寸，破碎晶炭化物組織需要有60％以上的拉應(yīng)變。CVN(Charpy V-notch) toughness and grain size number of J55 grade oil casings produced by Baotou Iron and Steel Company did not meet the reiative standards in the past.本文針對(duì)包鋼原來生産的J55石油套琯沖擊靭性不足，晶粒粗大的問題開展研究。etd.calis.edu.cngrain-size grade更多例句專業(yè)釋義地球科學(xué)粒度等級(jí)