查询词典 level condition

In this paper,we give a sufficient and necessary condition for the level surface s with respect to non-degenerate quadratic functions by the usage of the Hessian metric and of a transversal vector field.

本文利用Hessian度量和横截向量场，给出了非退化二次函数的水平曲面的一个充要条件。

On the base of other researcher, the *** from the basic equations of stable current field to derived the expressions of boundary problems under 3-D condition. Without considering the EM effect and using the generalized variation principle, we can get the corresponding variation equation. Thronging subdivide the 3-D model, interpolation, analysis, and general synthesis with the triangular prism element, we can carry out the simulation on frequency-domain IP\'s parameters under level and undulate topography.

在前人工作的基础上，在忽略电磁效应的情况下，从稳定电流场的基本方程出发，推导了三维区域满足的边值题目，用广义变分原理得到相应的变分题目，通过用三棱柱单元对大地模型进行剖分、插值、总体集成，最后解方程，得到每个节点上的复电位值，最后实现了水平和起伏地形等条件下的激电参数的数值模拟。2。

The index of mean trophic level is used to access the condition of exploitation and usage of marine fishery resources in East China Sea.

结果表明，经过几十年的捕捞开发，东海区渔获物的平均营养级已从1965年的3.5下降到1990年的2.8，自1974年后海区的产量主要依靠捕捞低营养级品种如马面鲍等而获得。

The general state of the Chinese seamen's mental health is not optimistic. The main causes that lead to the low level are as follows: the pressure at work, the sense of unsafety from special marine risk, the dull and lonely sea life and tough working condition, the lack of information and social support, the limitation for sociality and the ...

导致目前我国远洋船员心理健康水平较低的主要原因有：工作上的压力；海上特殊风险产生的不安全感；单调、寂寞的船员生活及相对艰苦的工作环境；信息闭塞与社会支持匮乏；人际交往的局限性以及人际关系的不协调；事故后心理得不到及时有效的调适；性需求得不到满足；生物钟节律经常被破坏，等。

In a more general level, water has also a civilizing role; both running water and water closet has been already long considered as an indispensable condition for modern society.

随着社会的发展，清洁水的使用和废水的处理问题日益受到关注，同时，也成为各行各业争论的焦点。

This article tries to get insight on some key issues of system hardware and software that occurs in daily operation, and presents corresponding maintenance and management measures to enhance normative management, which is of great value to improve water gate automatic operation management level and good condition rate of equipment in use.

简述了福建省泉州市金鸡拦河闸自动化监控系统的软硬件设施的组成，针对系统的软硬件在日常运行中出现的问题，提出了相应的维护与管理措施，并加强规范管理，对提高同类水闸自动化运行管理水平和设备的完好率有着积极的借鉴作用。

In real working condition, the control of water pump speed is the main mean to control water level.

实际工况中，给水泵转速控制是控制其液位的主要手段。

Based on comprehensive analysis of Taiping coalmine hydrogeological condition and water outlet lithologic characteristics through contrastive analysis of borehole water prospecting drainage and water sample tested data considered that the indirect water filling source of 700 level belt inclined winze may come from Mosuo River According to mine inflow point location and water yield water rich zone in front of roadway checked out by transient electromagnetic method adopted a water control scheme of shallow g .

在综合分析太平煤矿井水文地质条件，出水点岩性特征的基础上，通过钻孔探放，水样化验资料的对比分析，认为该矿+700水平胶带暗斜井的间接充水水源可能来自摩梭河；基于涌水点位置与出水量，以及瞬变电磁法确定的巷道前方富水区域情况，确定了采用浅层注浆法封堵的治水方案。

Based on comprehensive analysis of Taiping coalmine hydrogeological condition and water outlet lithologic characteristics through contrastive analysis of borehole water prospecting drainage and water sample tested data considered that the indirect water filling source of 700 level belt inclined winze may come from Mosuo River .

在综合分析太平煤矿井水文地质条件，出水点岩性特征的基础上，通过钻孔探放，水样化验资料的对比分析，认为该矿+700水平胶带暗斜井的间接充水水源可能来自摩梭河；基于涌水点位置与出水量，以及瞬变电磁法确定的巷道前方富水区域情况，确定了采用浅层注浆法封堵的治水方案。

Since FAP was first known 120 years ago, knowledge about FAP as well as clinical diagnosis and treatment of the condition has been evolving gradually, from knowing it as multiple polyposis in early years to the establishment of sized familial registration centers in American and European countries today;from permanent colostomy in the past to widespread use of up-date pouches; and from finding association of FAP with apenteric lesions to the study of APC genotype-phenotype at molecular level.

文献报道FAP已有120多年，早期认为是多发性结肠息肉病到目前建立的规模性家系登记中心；从过去采用永久性的回肠造口治疗方式到当今保留肛门回肠贮袋与肛管吻合的术式；从发现FAP肠外病变到在分子水平开展APC基因型-表现型之间的研究，FAP的临床诊治水平在不断提高。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。