不充分

Companies in strict accordance with American Petroleum Institute (AP1), American Society of Automotive Engineers, American Society for Testing and Materials, Japan Automobile Standards Organization classification criteria and the People's Republic of China home standards, Sinopec standard, the military standards and enterprise standards, the use of Exxon compound additive and imports of refined base oil dewaxing wide secondary hydrogenation treatment, it is technically feasible and widely Chevron USA, the British-run joint, DuPont, ExxonMobil and other companies to fully communicate using American spin magnetic ions and organic synthesis technology boron molybdenum additives for cutting-edge technology available in the market "in the stone fly" vehicle lubricants, industrial lubricants, engineering machinery oil, Grease, Ice-free fluid, brake fluid and other products with reasonable product mix, excellent quality assurance, accurate market positioning, establishing a good corporate image.

公司严格按照美国石油学会（AP1），美国汽车工程师学会，美国材料实验学会，日本汽车标准组织分类标准及中华人民共和国家标准，中石化标准，中国军工标准和企业标准，采用埃克森复合添加剂和进口精制基础油进行全脱腊二次加氢处理，在技术上广泛与美国雪佛龙，英润联，杜邦，埃克森美孚等公司充分交流合作，利用美国旋磁离子合成技术与有机硼钼添加剂的尖端技术为市场提供的"中石飞天"车用润滑油，工业润滑油，工程机械专用油，润滑脂，不冻液，制动液等系列产品，以合理的产品组合，优良的品质保证，准确的市场定位，树立了良好的企业形象。

Firstly, a necessary and sufficient condition for an uncertain multi-channel descriptor system to be robustly stabilizable with a specified disturbance attenuation level is derived in terms of a strict nonlinear matrix inequality.

主要考虑分散H输出反馈控制问题。推导出了使不确定多通道奇异系统能鲁棒稳定且满足一定的性能指标的充分必要条件，没有等式约束的非线性矩阵不等式条件。

The Maratos effect occurs if, arbitrarily close to a strict local solution of the NLP, a full Newton step increases both the objective function and the constraint violation, and is therefore rejected by the falter, even though it could be a very good step toward the solution.

当迭代点充分靠近原问题的严格局部解时，完全牛顿步可能会使目标函数值和约束违反度都上升，从而不被滤子接受，影响了算法的收敛速度。

The theoretical analysis are verified by numerical simulations.Chapter 3 mainly considers a class of predator-prey model with sublinear functional response function. We deduce some sufficient conditions ensuring stability of equilibrium, nonexistence , existence as well as uniqueness of the limit cycle around the positive equilibrium.

第3章研究了一类食饵为线性密度制约，功能反应函数为次线性函数的食饵-捕食者模型，完整地对模型的平衡点的全局稳定性和极限环的存在惟一性进行了定性分析，得到了该系统不存在闭轨线，正平衡点全局稳定和存在惟一稳定的极限环的充分条件。

In the present paper,a sharp inequality is obtained between the Ricci curvature and the squared mean curvature of semi-invariant submanifold s in cosymplectic space forms,and some conditions are reached to make the equality hold.

对余辛流形的半不变子流形进行研究，利用曲率的分量表示之间的简单的代数关系，得到了这类子流形的R icc i曲率与平均曲率平方之间的一个不等式，并讨论了等式成立的充分必要条件

His feeling for men is not that they co-exist, but that they are capable of being arranged and standardized by a superior intellect― that their existence suggests not a fulfillment of their personalities but a submersion of their personalities in the common racial destiny.

他对人类的感想不是和平共处，而是他们能够被一个具有超凡才智的人摆布，变成一种模式──人们的生存并不意味着个性的充分发展，而是意味着让他们的个性服从共同的种族命运。

His feeling for men is not that they co-exist, but that they are capable of being arranged and standardized by a superior intellect－ that their existence suggests not a fulfillment of their personalities but a submersion of their personalities in the common racial destiny.

他对人类的感想不是和平共处，而是他们能够被一个具有超凡才智的人摆布，变成一种模式──人们的生存并不意味著个性的充分发展，而是意味著让他们的个性服从共同的种族命运。

Cheap labor is an important condition for the development of the manufacturing sector, but not sufficient condition.

廉价劳动力是一个重要的条件，发展制造业部门，但不是充分条件。

Clearly it is not a sufficient condition.

显然不是一个充分条件。

The author believes that the demand is only a necessary condition for high prices, not sufficient condition.

笔者认为，需求是唯一的一个必要条件高价格，而不是充分条件。

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。