查询词典 alternation

The alternation of anorganism's niche is around the basic niche point,and when essentialand/or unessential resource is lacking,the niche of organism shows adifferent strategy for adaptation.

在必需资源和/或非必需资源缺失的情况下，生物生态位表现出不同的变化和适应对策。

Effect of alternation of agar and agarose on the plant differentiation frequency of calli from wild rice.

琼脂浓度对水稻愈伤组织植株再生率和内源激素含量的影响。

Summarizing and analysing the stability of stratigraphy and the basic characteristics of geological hazard at the Three Gorges Reservoir,the authors put forward the dangerous slope mainly includes bedding slope,hard and soft rock alternation gentle slope,loose accumulative slop,karst breccia slop and layer cataclastic rock slop.The loose accumulative slopes from Fengjie to Badong are most dangerous and need to control.

在总结分析三峡水库区岩层稳定性及地质灾害基本特征的基础上，根据岩性和结构特征，提出三峡水库区存在较为严重失稳隐患的边坡主要有顺层边坡、平缓软硬岩层互层边坡、松散堆积体边坡、岩溶角砾岩边坡和层状碎裂岩边坡等5种类型，其中分布于奉节至巴东段的松散堆积体边坡危险性最大，是需工程防护的重中之重。

Objective To study the distribution and alternation of flow patterns, pressures and wall shear stresses during a cardiac cycle in cirsoid aneurysm.

目的 分析在一个心动周期中蜿蜒型脑动脉瘤的血液流动情形、压力和壁面切应力分布和变化情况。

The results showed that the structure characteristics of block cloddy was with tight surface but loose inner, the bulk density of the crust can be high as 1.39~2.0g/cm^3, which was mainly affect by unreasonable tillage process. The tight surface can not be crushed by nature alternation of drying and wetting. Farming machinery to impact and rotary tillage were necessary when reduce them.

结果表明不合理耕作所产生的块状结构体具有外部极为密实而内部相对疏松的构造特征，外壳的容重高达1.39~2.0g/立方公分以上，仅依赖于自然干湿交替作用使其碎散成小的土团成为不可能，必须运用机械击打、旋耕切割等方法进行破碎。

However, the alternation of light and darlmeS5 every 12 hours was found to be the best for Colletotrichum acutatum.

它们对碳源的利用有较大差异，胶孢炭疽在麦芽糖上生长最好，而尖孢炭疽在甘露醇和乳糖上生长较好。2种炭疽菌对甲基托布津的敏感性差异显著，尖孢炭疽有较强的耐药性。

With the exchange and orderliness of culture flax resulted frying society alternation, different literature parties and concepts concerned appeared compositely.

内容提要：20世纪，中国社会排列秩序及世界格局体系均发生了深刻的变化，随着人类社会更替引起文化流动的交融和整合，各种文学流派及其概念相争突起。

The paper introduces the characteristics and performance of HGIS devices and their application in Bao'an Converter Station of GuiGuang II DC Project,and analyzes the abnormal condition that a 500 kV HGIS disconnector did not work correctly due to the difference between its framework and blueprint.Based on the analysis of the original blueprint,three design alternation schemes are presented and compared to compensate the mismatch,and the realization of a scheme in this station is discussed.In addition,some suggestions about design,commissioning and operation of an HGIS are proposed.

笔者首先简要介绍了HGIS设备的特点、性能以及国产500 kV HGIS开关设备在贵广II回直流工程宝安换流站的应用情况，接着分析了因隔离开关机构箱与设计图存在一些差别导致现场调试过程中出现隔离开关不能正常操作的情况，在分析原始设计图的设计原则的基础上，给出了3种设计变更方案及其优劣性对比，介绍了该站所选方案的具体实现情况，最后给出了在今后的HGIS设计、调试和运行过程中须注意的几点建议。

Thus, it is effective to comprehend the ecological process according to researching landscape pattern. To analyze the changes of landscape pattern along with times could not only reflect its ecotypic process, but also reveal the system and rule of landscape alternation that implementing the sustainable use of resource.

因此，通过研究景观格局可以更好的理解生态学过程，通过分析景观格局随时间的变化可以反映景观生态过程，揭示景观演替的机制和规律，实现资源的可持续利用。

Using electronic microscopy and cytochemical methods, we studied the distribution changes of the cell ergastic substance and development of secondary vascular tissues. Development of secondary vascular tissue took on an inherent rhythm, showing alternation of dormant and differentiated stages in periodicity of one year, and the formation of secondary phloem and xylem was alternate.

利用电镜技术及细胞化学方法，研究了美洲黑杨次生维管组织的发育以及细胞内含物分布的变化，发现次生维管组织的发育具有内在节律性，在年周期中表现为分化期和休眠期交替出现；次生韧皮部与次生木质部交替分化形成。

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。