段长度

In this paper, formulas for calculating the thickness of the turbulent boundary layer and the inlet length in the entrance region of the rough pipe are given with the help of momentum integral equation in which the velocity distribution is the logarithmic law.

本文在流速分布对数律假设下，通过求解动量积分方程获得了粗糙圆管进口段紊流边界层和进口段长度的计算式。

The number of nuclei is dependent of the ratio between pPDA and ODA and segment length of pPDA-PMDA, while the size of grains is depended on the movability of ODA-PMDA segment.

在结晶过程中，晶核数目取决于pPDA/ODA比值及pPDA-PMDA链段长度，而晶粒尺寸依赖于ODA-PMDA链段的运动能力。

Number of proton transport also increases with increasing length of link segments, chain number, and total segmental concentration.

同时质子输送数随着链段长度、链数、总链段浓度等的增加而增加。

The system utilized four laser scanners along lengthwise direction of the log. Data are obtained in every ten degrees when log is turning, in each cross section, 36 data are obtained. Then the data obtained were processed and an outline of the cross section of the log was developed on computer screen. Afterwards, the largest inscribed circles for log cross sections were determined according to the principle that three points can determine a circle. Secondly, the points located on the cross sections were linked up along some log generative in order to simulate the three-dimension log outline. At last the largest right circular cylinder were optimized and the optimum turning center was determined by means of projective theory.

具体作法是：在木段长度方向均匀设置四个激光传感器，当木段旋转时，起动激光传感器，进行数据采集，每隔10~0扫描一个点，在各横断面圆周上共采集36个点的数据，由计算机处理采集的数据，并绘制出原木横断面的几何图形，再根据三点定圆的原理，确定出最大内接圆；其次，模拟原木三维廓形，即将原木相邻横断面上离散点沿着母线方向连线，由计算机分析处理，绘制原木三维廓形；最后，采用投影法，优化出原木最大内接圆柱体，并确定原木回转中心线。

Results:The oculomotor nerve entered into cavernous sinus at 7.8± 2.1 mm anterolateral to posterior clinoid process and 5.0±2.0 mm posterior to superior segment of clinoid process of internal carotid artery.

滑车神经窦内段长度为 10 。1± 3 。9mm ，其走行可分为窦内直行、中份凸向眼神经、&S&型双弯曲、前 1/2段凸向眼神经 4种类型。

Results: Regenerated mandibular segments of over 3cm length were created in all canine models. The bone density and intensity of the central growth zone of regenerated segments were about 15% of the normal part of homolateral mandible in three monthes, and got to about 40% in four monthes, and 60% in five monthes.

结果：各实验犬牵引再生骨段长度均达到3.0 cm以上，术后3个月再生骨中央生长区强度和密度达同侧正常骨段的15%左右，术后4个月时可接近正常骨的40%，术后5个月时可达正常骨密度的60%左右。

PEG-PLA block copolymers were synthesized using polyethylene glycol and lac-tide in the presence of low toxic stannous octoate. The copolymer structure was determined by 13C NMR and the average block leng this were calculated.

本文报道聚乙二醇在辛酸亚锡存在下与丙交酯反应合成PEG-PLA嵌段共聚物，用~(13)C NMR测定了共聚物的结构，估算了平均链段长度。

Under certainconditions,SBS molecules can not form polymolecular micellmicelle because of longer PS block or shorter PB block.

研究表明：SBS在PS嵌段的选择性溶剂中的胶束行为与共聚物组成、嵌段长度，微观结构及溶液浓度和温度有关。

Flow theory and application of volcanic rock reservoir exploited with horizontal well is studied based on the preexisting theories.

研究了水平井段长度、裂缝和水平段夹角对开采效果的影响。

The difference of the interaction between the two different blocks results in the dependence of the solubility and the chain shape on the block sequence length.

嵌段间的相互作用能的差别越大，则高分子的溶解性和形状对嵌段长度的依赖性就越显著。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。