生长曲线

"S" curve of growth ; Gauss distribution function ; training curve ; professional teaching model design ; correlation analysis

"S"型生长曲线； Gauss分布函数；人才培养曲线；专业教学模型设计；相关分析

There is a baby's growth curve indicators, as long as the curve is less than normal.

有一个孩子的生长曲线指标，只要在曲线以内都是正常的。

If the growing demand for land increased gradually drawn into a parabola, then with this showing a similar parabolic growth curve is another urban development curve.

如果日益增长的需求逐渐增加，引起土地成抛物线，然后显示与此类似抛物线生长曲线是另外一个城市发展的曲线。

In order to discover acid-tolerant Rhizobium meliloti that can nodulate alfalfa high-effectively on acidic soil, researches were explored to isolate rhizobia from alfalfa nodules on acidic soil (pH5.2), methods based on the thesis of adaptive acid-tolerance response of the Rhizobia were adopted, six strains were isolated, which could grow on solid medium with pH4.8 steadily. In addition, the nodulation characteristics, growth curves and mean generation time under different acidity of the strains were examined.

为获得能够使紫花苜蓿在酸性土壤中高效结瘤的耐酸根瘤菌，该研究从酸性土（pH5.2）上生长的紫花苜蓿根瘤中分离到若干菌株，利用根瘤菌对酸的适应性耐受反应筛选到六株能够在pH4.8的固体培养基上稳定生长的菌株，并检测了这六株菌的结瘤特征、不同酸度下的生长曲线和平均代时。

The biological features of hBMSCs and cryogentic storaged cells were analyzed.hBMSCs memberane antigens were identified by immunofluorescence staining.The potential osteogenous differentiation of hBMSCs was evaluated by the osteogeneic inducer kit.

倒置光学显微镜下观察细胞形态及生长情况，细胞计数法绘制细胞生长曲线，并分析冻存细胞复苏后的生长特性，免疫荧光染色测定hBMSCs表面标志，成骨诱导试剂盒检测hBMSCs向成骨分化的潜能。

Methods Pterygial samples were extracted and collected and the pterygial endothelial cells and pterygial fibroblasts were cultured alone, conditional and co-cultured to form different culture systems. The methods included that to select the suitable intensity of ultraviolet by MIT, to detect the changes of curves of growth about two kinds of cells by MIT and to explore the developments of protein and RNA of vascular endothelial growth factor and fibroblast growth factor-basic in three culture systems under ultraviolet whose intensity is 20 mJ/cm^2 by ELISA and RT-PCR.

收集翼状胬肉标本，采用血管内皮细胞和成纤维细胞单独培养、条件培养和共同培养的方法构建体系，用MTT法选择紫外线照射细胞的适宜强度；采用MTT法绘制强度20mJ/平方公分紫外线照射下细胞生长曲线；采用ELISA和RT-PCR检测紫外线照射下3种体系中细胞上清液和细胞中血管内皮细胞生长因子和成纤维细胞生长因子的蛋白和RNA含量变化。

Results: Mean values of the annual increment of body height and the ages of the pubertal growth periods were analyzed.

结果：绘制适合中国人的正畸临床用身高标准生长曲线及年增长量曲线。

Methods HOS cell line was treated with various concentrations of tretinoin in different durations in vitro. Proliferation suppression was observed by MTT method and invert microscope before and after tretinoin treatment, and protracting cell growth curve. The cell growth and invasion ability was measured with the colony-formation rate in soft agar test.

不同浓度的维甲酸作用HOS细胞，采用噻唑蓝法、倒置相差显微镜观察药物对细胞生长的影响并绘制细胞生长曲线；软琼脂集落形成实验观察细胞生长和侵袭能力的变化；流式细胞仪测定细胞周期变化。

Kinetic parameters of the bacteria growth were obtained, which were in good agreement with those obtained from the pour plate count method.

得到了该生长过程的实时生长曲线和该细菌有关的生长常数，探讨了初始细菌数对这些常数的影响。

Growth of cultured winged pearl oyster, Pteria penguin was studied in 20 months in Li'an Lagoon, Hainan, south China. The growth parameters of maximum diagonal length, shell length, hinge length and total weight were measured monthly and described using y=y(subscript ∞)/superscript (1+e-k+d sin (2п/365.25).

对海南黎安港的企鹅珍珠贝养殖群体的生长进行了20个月的观察，每月测量其壳高、最大对角线长、绞合线长和总重四个生长指标，并用模型y=y/1+e(上标-k+d sin (2п/365.25)分别拟合这四个指标的生长曲线。

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