查询词典 niche

He found his niche in the academic world.

他发现了一个适合他的职位。

The niche breadth and niche overlap for dominant species of the arbors layer were calculated.

摘 要：以湘中丘陵区石栎群落为调查研究对象，分析了群落的特征，定量计测了乔木层主要树种的生态位宽度和重叠值。

Resources and its artificial cultivation. Using the calculation formula of Shannon-Wiener exponent niche breadth, the niche breadth of E. brevicornum in Jinchengshan forest park of Jialinajiang River basin under different environmental factor range were determined. And the suitable environmental factors for the growth of Jingchengshan F. brevicornum in natural vegetation community were discussed.

方法］采用Shannon-Wiener指数生态位宽度计算公式，对嘉陵江流域金城山森林公园淫羊藿在不同环境因子范围上的生态位宽度进行测定，探讨自然植被群落中金城山淫羊藿生长的适宜环境因子。

Methods The niche breadth was determine using the Levins model, the niche overlap the Colwell?

生态位宽度用Levins模型测定；生态位重叠用Colwell？

Applyed Levins Index corrected by Corwell and Wang gang Index, the niche breadth and niche overlaps of 20 species' in alpine meadow of Bayanbulak were measured at two resource dimension levels.

本文采用Levins提出经Corwell修正指数和王氏重叠指数，在土壤pH值和土壤全盐二维生态因子梯度上，测定了巴音布鲁克高寒草地20种主要植物种群生态位宽度和生态位重叠值。

In the aspect of niche, the niche breath of B. platyphylla, Quercus aliena, Fraxinus spp., B. dahurica were big, but A. mono, Ulmus macrocarpa, Armeniaca sibirica, Platycladus orientalis were small.

2在生态位方面，白桦、槲栎、白蜡、黑桦的生态位宽度较大，而色木槭、大果榆、山杏、侧柏的生态位宽度较小。

IGF-1 accelerated ageing in mouse niche cells, as the team expected, and when the researchers injected antibodies that neutralise IGF-1 into the bone marrows of old mice, the niche and stem cells remained young.

如团队期望的那样， IGF-1加速了老鼠壁龛细胞的衰老进程，当研究者们注射抗体中和老年鼠骨髓中的IGF-1时，壁龛细胞和干细胞保持了年轻状态。

H and M c are wetter than middle soil water content, belongs to mesophytes; The optimal water niche of Mosla scabra, on photosynthesis is more wetter than that of M.h and Me, the optimal water niche between mesophytes and hygrophytes, and leaning to hygrophytes; The photosynthetic water condition of M.d is arid environments, and its ecotype exits between mesophytes and xerophytes, and leaning to xerophytes.5 M.h and M.s are locating between shade plants and sun plants, while M.c and M.d obviously belong to sun plants.

杭州石荠苧与华荠苧光合的最适水分条件是中等偏湿，其水分生态类型应属于中生植物；石荠苧光合的最适水分条件比杭州石荠苧与华荠苧光合的最适水分条件要求更湿，其水分生态类型介于中生和湿生植物之间，更偏向湿生；小鱼仙草光合作用的水分生态条件是干旱条件，其水分生态类型介于中生与旱生植物之间，更偏向旱生。

Using the classic plot survey method （survey area is 7 200 m^2）, niche breath and niche overlap values of ten dominant species were calculated, with layer as one-dimension resource state and abundance as index, in the Pinus kwangtungensis community in Nanling National Nature Reserve of Guangdong.

在广东南岭国家级自然保护区广东松Pinus kwangtungensis群落内，通过典型样地调查（调查面积共7200m^2），以不同林层作为一维资源位，以个体多度作为计测指标，计测了广东松群落中10个优势种群的生态位宽度和生态位重叠值。

The realized niche of SRB in the acidogenic-desulfate system is determined by its function; and the figure of three-dimension realized niche of its population is also presented, which is restricted by pH, ORP and ALK.

SRB种群的功能决定了它在产酸脱硫系统中的实现生态位，并给出了由pH值、氧化还原电位和碱度制约的SRB种群的三维实现生态位图。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。