累积过程,mass accumulation
1)mass accumulation累积过程
英文短句/例句

1.Mathematical Simulation of Dynamic Accumulation Operation and Experimental Verification;动态累积过程的数学模拟及实验验证
2.Study on the Process of Reside and Accumulation of Heavy Metals in Tea;茶叶中重金属的残留和累积过程研究
3.It be a cumulative process .它是一个逐步累积的过程。
4.The process of improvement is a cumulative one.改进的过程是逐渐积累的。
5.On the Accumulation of Social Capital in the Process of Chinese System Transformation;中国体制转轨过程中的社会资本积累
6.Factors Affecting Nitrite Accumulation in Nitrification Process硝化过程中影响亚硝酸盐积累的因素
7.In the early rice growing years, the process was greater in desalting than in accumulating.在早期水稻种植年份,脱盐过程大于积累过程。
8.Knowledge is a process of piling up facts; wisdom lies in their simplification.知识是积累事实的过程,智慧则在于简化事实。
9.SOILS IN THE MARITIME ANTARCTIC Ⅱ. ORGANIC MATTER ACCUMULATION南极半岛海洋气候区的土壤 Ⅱ.有机质积累过程
10.Mechanisms and Processes for Plant Uptake of PAHs and Prediction of Uptake with a Partition-limited Model;植物吸收积累多环芳烃的过程、机理及预测模型
11.Dynamic-Failure Study of BSS by Considering Damage Accumulations;考虑损伤累积的张弦梁动力失效全过程分析
12.Studies on Physiological and Biochemical Characters of Tuberous Root Starch Accumulation Process of Cassava;木薯块根淀粉积累过程生理生化特性研究
13.Accumulation and Change of Soil Organic Carbon Inter-relating with Vegetation Succession in Ziwuling Region;子午岭植被演替过程中土壤有机碳积累与变化
14.Involvement of Rubisco in Astaxanthin Accumulation According to Photosynthetic Characters in Life Cycle of Haematococcus Pluvialis;雨生红球藻Rubisco在虾青素积累过程中的表达分析
15.Cloning of cDNA Fragment of Cytosolic Ascorbate Peroxidase and Its Expression during the Accumulation of Vitamin C in Rosa Roxburghii Tratt;刺梨APX基因的克隆及其在AsA积累过程中的表达
16.Research of Temperature Regulating on Dry Matter Accumulation during Developing of Cotton Boll;棉铃发育过程干物质积累的温度调节效应研究
17.Identification of Heavy Metal Hyperaccumulators and Relevant Processes of Contaminated Soil Phytoremediation;超积累植物筛选及污染土壤植物修复过程研究
18.On spiry process of technological capability s building paths;技术能力积累途径的螺旋运动过程研究
相关短句/例句

accumulating rule积累过程
1.Study on accumulating rule of primary fatty acids and proteins in flax seeds;亚麻籽粒中主要脂肪酸和蛋白质积累过程研究
3)wealth cumulative processes财富积累过程
4)biomass formation processes干物质累积过程
5)energy processes能量积累过程
6)Cumulative hazard process累积失效率过程
延伸阅读

正规过程和倒逆过程  讨论完整晶体中声子-声子散射问题时,由于要求声子波矢为简约波矢(见布里渊区),所得到的总波矢守恒条件会相差一个倒易点阵矢量G)。例如对于三声子过程有下列条件         , (1)  式中q1和q2是散射前的声子简约波矢, q3为散射后声子波矢,式(1)中G)的取值应保证q3也是简约波矢。这时会出现两种过程,其一是当q1+q2在简约区内时,可以取倒易点阵矢量G)=0,式(1)则简化为总波矢守恒条件,称为正规过程或N过程。其二是当q1+q2超出简约区时,所取G)应保证q3仍落于简约区内,由于q3与q1+q2相差G),显然q3位于q1+q2的相反一侧,这时散射使声子传播方向发生了倒转,故称为倒逆过程或U过程。U过程总波矢不守恒,但总能量守恒,因为声子频率是倒易点阵的周期函数,而q3与q1+q2只相差一个倒易点阵矢量。N过程在低温长波声子的散射问题中起主要作用。当温度升高,简约区边界附近的声子有较多激发时,U过程变得十分显著,它对点阵热导有重要贡献。    在能带电子与声子散射问题中存在着与式 (1)相仿的总波矢条件  k+G=k┡±q,       (2)  式中k与k┡分别为散射前后电子的简约波矢,±号分别对应于吸收或发射q声子。类似的在热中子-声子散射以及晶体中一切波的相互作用过程中,总波矢变化都相差一个倒易点阵矢量G),因此也都有N与U过程之分。这是晶体和连续媒质不同之处,连续媒质对无穷小平移具有不变性,才能求得总波矢守恒,而晶体只具有对布喇菲点阵的平移不变性,因此总波矢守恒条件会相差一个倒易点阵矢量。