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Kuroki N firstly put forward the notion of rough subsets and rough ideals in semigroups, testifying that Under the condition of the congruence relation, a rough set of a subsemigroup was proved to be its subsemigroup, while that of a leftideal was also proved to be its leftideal.

Kuroki N首先研究了半群中的粗理想，首次提出了粗子半群和粗理想的概念，证明了在同余关系下，半群的粗糙集是半群，左理想的粗糙集是左理想。

Firstly, the paper utilizes the method of criterion research to analyze the construct of brand's gender traits by integrating the Gender Schema Theory with the Self-concept Congruity Model, and create a model of brand gender traits.

首先，本文把性别图式理论和自我概念一致性模型结合起来，对品牌的性别气质结构进行了理论分析，构建出了品牌的性别气质模型。

Firstly, by using the function of EXCEL software and choosing the appropriate expression to calculate and get positive axis single latitude conic projection plane right-angle coordinates data table and length distortion data table about latitude.

根据实践经验，以经度97°~108°；纬度23°~34°为研究工区，用正轴切圆锥投影模型为例，介绍利用EXCEL软件中的公式对地图制图中的数据进行运算处理，求得正轴单纬圆锥投影平面直角坐标数据表，以及长度变形随纬度变化的关系数据表。

A typical 3-RPS parallel platform manipulator mechanism is firstly studied by means of the above theory. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively.

以上述理论为武器首先分析典型的3-RPS并联平台机构，分别应用二次曲线分解理论和二次曲面分解理论，识别了该机构在三种位形下的主螺旋。

Firstly, this thesis introduces the basic definition and characters of conic curve over finite field Fp and ring Z n.

本文首先分别介绍了基于有限域Fp上的圆锥曲线C p和基于环Z n上的圆锥曲线C n的定义和性质。

Pathogens were isolated from diseased leaves of Atractylodes in Xiaochang county of Hubei province. Firstly, we pathogenicity test was conducted based on Kochs rule. Secondly, we described the morphological characteristics of the conidia, conidiophore and beak of the pathogens growing on diseased leaf land PCA.

从湖北省孝昌县苍术种植基地的发病植株叶片上分离得到菌株，根据柯赫氏法则对分离自发病叶片的菌株进行致病性测定，然后描述了寄主发病叶片以及PCA培养基上分生孢子、分生孢子梗及喙的形态，测量其大小，观察分生孢子链的形状。

PAL activity, chitinase activity, total Polyphenol content and total Flavonoids content in soybean leaves induced by the same crude toxin and race were similar, it stated that the crude toxin is an important factor which can induce resistant substances, but the induced speed and the induced intensity by the crude toxin and conidium were different. Firstly, the induced speed of crude toxin which induced PAL activity and total Flavonoids content of resistant soybean varieties was faster than speed of C.

同一生理小种的粗毒素与灰斑病菌对大豆叶片内PAL活性、总多酚类含量、总黄酮含量以及几丁质酶活性等几种生化指标均表现出相似的诱导作用，由此可推断粗毒素是诱导大豆叶片内的PAL活性、总多酚含量、总黄酮含量以及几丁质酶活性产生变化的主要生物因子，只是二者在对抗性不同的大豆品种的诱导速度及强度上存在一定的差异。

Therefore, this paper will firstly, illustrate the content of "family instruction" upon women education and discuss the practical effects of "family instruction", secondly, expound the disputes arose from four difference levels of human relations within conjugality: husband and wife, parents-in-law, husband's relatives, and wife's relatives, and finally, survey the litigation process of women-related cases from the perspective of laws and cite legislation.

因此本文首先说明「家训」对妇女的教育内容为何，并论述「家训」的实际影响状况。次则叙述夫妻、公婆、婆家亲属、娘家亲属等四种在婚姻生活中，不同层次的人伦关系所引起的纠纷。最后则是从法律观点来审视与妇女相关案件的审理过程与徵引法条。

Firstly,the new images' orientation parameters are resolved using the old aerial images with POS data in the same area,and feature points are extracted in old images,and new images' conjugate points are computed using forward intersection and collinearity equations.

首先利用带POS数据的老影像解求新影像的外方位元素，然后在老立体影像上提取特征点，根据前方交会和共线条件方程得到新影像上同名点的近似位置，再与新影像进行匹配，寻找匹配不好的点作为变化区域的初始位置。

The thesis firstly comprehensively traces the source of conjunctions in Xunzi, seeks the course and reasons of grammaticalization, probes into the rules of conjunctional grammaticalization and features.

本文首次比较全面地对《荀子》中的连词进行溯源，探寻连词语法化的具体过程和动因，归纳连词语法化的规律和特点。

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。