查询词典 quadrat

Each small quadrat must be more homogenerous than the sociation as a whole.

每个小样方必须比整个基群丛更为统一。

Starting at the river, use the belt transect method, of laying the quadrat on the ground and flipping it over until you reach the end of the string.

起始于河中，使用带断面的方法，奠定方在地上，翻转它，直到您达到结束的字符串。

Influences of extreme climatic events on safety of wildlife populations in Ningxia province were surveyed by questionnaires and the sample quadrat method.

通过问卷调查和样地调查方法，分析极端天气气候对宁夏野生动物种群安全产生的影响。

In this paper, four diversity indexes were considered as quantitative indicators of understory for urban forest, while the features of environment variables were recorded at the corresponding quadrat scale.

以4类多样性指数作为衡量城市森林林下层植物多样性差异的定量指标，并同时记录对应样方尺度的环境变量特征。

The quadrat method and sample line approaches were used to investigate plant growth status.

样地类型分为：天然草地、退耕还草地、撂荒地、湿地、人工封育草地、流沙地等6种类型。

Quadrat A square area of variable size depending on the study (standard sizes are 0.5 or one meter square to 10m square or more )taken at random, within which the composition of organisms is noted.

样方：由于研究的需要而随机选择的大小（以0.5平方米或1平方米到10平方米或更多为标准的面积）可变的一块区域，称为样方。

In this study, we investigate amphibian species and abundance using visual encounter, automated sound recording, and quadrat sampling methods in different habitats to understand population trends over the years.

本研究拟於2008年以目视遇测、自动录音和方格取样三种方法，对不同类型的栖地进行两栖类调查，以了解族群变动趋势。

For the protection of Huashan Rock Painting,the method of quadrat investigation is applied in the determination of species and their important values by investing the present situation of the ecological environment.

左江壮文化生态保护区位于广西南部，地理位置位于21°51′~22°58′N、106°38′~107°36′E之间，保护区以宁明县的花山岩画为中心，其区域总面积为35677.65公顷，区内蕴藏着丰富的自然资源。

According to general step and request which the mold designs, carries on the analysis to the components ramming technology capability, has drawn up the ramming components craft plan, has determined the pressing part platoon quadrat type and the computation material use factor.

按照模具设计的一般步骤和要求，对零件的冲压工艺性进行分析，拟定了冲压零件的工艺方案，确定了冲压件的排样方式和计算材料利用率。

The results revealed that in Shanghai,the epiphytic bryophytes of trees could be clustered into four quadrat groups.

结果表明，上海市树附生苔藓植物可聚类为4个样点组：样点组Ⅰ为7个样点，6个位于市中心，共有树附生苔藓16种，总盖度为12.43%；样点组Ⅱ为市郊样地年龄较年轻的4个样点，共有树附生苔藓11种，总盖度最小为8.47%；样点组Ⅲ为市郊6个样点，共有树附生苔藓33种，总盖度为25.82%；样点组Ⅳ为佘山自然保护区一处，共有树附生苔藓10种，总盖度为26.42%。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。