1) free-opening rate
自开率
2) automatic casting ratio
自动开浇率
1.
1 Steelworks of Tang Steel is technically reformed over its working life,automatic casting ratio of slide gate nozzle and air permeability for argon blow,a rather good result got.
针对精炼用钢包在炼钢生产中的作用越来越突出、越重要的实际,唐钢第一炼钢厂对精炼用钢包寿命、滑动水口自动开浇率、吹氩透气性等进行技术改进,取得了较好的效果。
3) nozzle automatic opening rate
水口自开率
4) automatic frequency track switch
频率自动跟踪开关
5) holes area ratio
开孔率
1.
The optimal holes area ratio of draft tube was 16.
研究发现导流筒的安装会降低功耗,提高气含率;导流筒的开孔率以16。
2.
the lower impeller which is used as upward axial impeller is better than the one used as downward axial impeller in the experiment; the gas hold-up of the reactor with two-stage draft tubes is the best, and the holes area ratio of upper draft tube should be 6.
研究芯现,下桨排出流向上的气含率比排出流向下时的高;反应器中双层导流筒结构时的气含率结果最优,上层导流筒的开孔率应为6。
6) crack probability
开裂概率
1.
A concept of dry shrinkage crack probability (C) has been put forward by which the concrete dry shrinkage crack probability could be devided into three levels named as: C≥60%(high risk),40%≤C<60%(medium risk)and C<40%(low risk).
介绍了一种评价混凝土收缩开裂的试验和评价方法,该法能够准确测量约束状态下混凝土干燥收缩时其内部产生的拉应力,特别是能够客观评价补偿收缩混凝土在弹性限制条件下抵御收缩应力的能力;提出了干燥收缩开裂概率C的概念,并将混凝土发生干燥收缩开裂的概率划分为C≥60%(高开裂风险),40%≤C<60%(中等风险)和C<40%(低风险)三种状态;试验表明,补偿收缩混凝土能够在混凝土中建立一定的自应力,可以有效降低混凝土的干燥收缩开裂概率。
补充资料：开率
1.犹显露。
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参考词条