分阶段

All broilers were given access to feed and water ad libitum during the experimental period.

饲养试验分前期和后期两个阶段进行，前期0-3周龄，后期4-6周龄。

Finally, through the association rule and cluster analysis of data mining, we analyzed consumer adumbration, lifestyle habits and purchasing behavior.

最后利用所建立之关联资料资库透过资料采矿的方法以二阶段分群方法与关联法则，将顾客轮廓、生活型态与购买行为等因素加以分析，做为市场区隔的依据。

The origin and the development of Beijing University is illustrated according to different period.The spirit,tradition and connotation of the motto of Beijing University "ideological freedom and all-inclusiveness" is interpreted.

分三个阶段简要回溯了北京大学的发展渊源与历史沿革，解读了北京大学的隐性校训——"思想自由，兼容并包"的内涵、措施与北大精神的延续与传承。

The resistance of strawberry was observed at each phase of the invasion after formation of the appressorium.

而草莓不同品种对白粉菌的抗性表现在附着胞产生后的各侵染阶段，随品种抗病性增强，病菌侵入率降低，吸器数目减少，菌丝扩展缓慢，分生孢子数目减少。

Lagenarium was higher 50%, respectively. The most PE showed inhibition to C. lagenarium. On the control, only several PE had obviously inhibitory effect on the conidium germination, mycelium growth and appressorium formation at the same time.

大部分植物提取物对测试病菌具有一定程度的抑制作用，只有极少数提取物对病菌的菌丝生长、分生孢子萌发、附着胞形成等不同的发育阶段均表现出强烈的抑菌效果，与对照达极显著差异。

However, the design theory and construction methods of plane bifurcate tunnel is not yet perfect until now because the researches and applications of the bifurcate tunnel are still in the exploratory stage, lacks a systematic and completely study.

但是现在对分岔隧道的研究和应用还处于摸索阶段，缺乏系统和全面的研究，导致其设计理论和施工方法还尚不成熟。

In the first stage of refinement, broad distribution glass microspheres are very accurately sieved using a variety of sieving processes to produce extremely sharp cuts from over 4mm down to 38 microns.

在第一阶段细化后，使用筛分流程，大分布的玻璃微球被精确的筛分从38微米到4毫米的颗粒，并且有90%的颗粒分布于额定尺寸范围内。

Results show that the formation of inaccessible pores occurs in the initial reaction stage mostly; fractal dimensions decrease continuously in the process of sulfating, and the relationship between the fractal dimension and pore distribution meets the Friesen equation.

结果表明：脱硫剂中不可进入孔隙的形成主要出现在硫化反应的开始阶段；随着硫化反应的进行，脱硫剂孔结构的分形维数不断减小，且孔隙分布与分形维数之间满足Friesen关系方程。

Meanwhile, the experiments show that the approximate global minimum partition of the coarsest graph may be the local minimum partition of the finest graph and we need to strengthen the global search ability of refinement algorithm in the refinement phase.

同时实验数据也反映了在最小图上的全局近似最优剖分可能是初始图的局部最优剖分，需要加强多水平优化阶段的迁移优化算法逃离局部最优的能力。

Plants modulate their shoot architecture by regulating activities of the shoot apical meristem and axillary meristems.

高等植物通过调节顶端分生组织和侧生分生组织的活性建立地上株型系统，分生组织的活性受环境信号、发育阶段和遗传因素的综合调控，植物激素参与这些信号的整合。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐