常見(jiàn)例句雙語(yǔ)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(lái)生産的J55石油套琯沖擊靭性不足,晶粒粗大的問(wèn)題開(kāi)展研究。etd.calis.edu.cn 返回 grain-size grade