封闭的

One important feature ofHamiltonian systems is that it has energy(its energic function is Hamiltonian func-tion),then,its solutions on 2-dimensional plane are some contour lines,the points onstable manifold emanating from hyperbolic equilibrium point have the same energyas that on unstable manifold,then,one can guess that they form a closed curve,i.e.homoclinic orbits under certain conditions,and the contour lines in the innerpart of homoclinic orbit are periodic orbits.

哈氏系统的一个重要特征是它有能量存在(以Hamiltonian函数作为它的能量)，那么在二维平面上，它的解表现为一些等值线，从双曲平衡点发出的稳定流形和不稳定流形上的点具有相同的能量，那么可以猜测，在一定条件下它们构成一条封闭的曲线，即同宿轨，而且其内部的等值线都是周期轨道。

In chapter three, it assumes that each retailer and distribution center implement periodic review and the same ordering policies, each retailers' demand is independent identical distributed random variables during the different periods, the lead-time is not completely same constants, and the k-fold convolution of the demand distribution functions is closed.

第三章，假设每个零售商和分销中心实行周期盘点，并采用相同的订货策略，多个零售商的需求在不同的周期是相互独立的随机变量，两级分销系统内的交货时间是不全相同的常量，零售商需求的分布函数之k重卷积是封闭的。

The model of programmed crystallization of SPM was proposed based on the moment transformation of the population considering the agglomeration. The optimal temperature-time curves in a batch crystallizer which maximized the terminal mean size and mean weight size can be determined from the application of the Pontryagin Maximum Principle. The calculated crystallization results heating under optimal temperature were compared with ones under linear or natural heating temperature.

根据第四章所得到的螺旋霉素晶体二次成核和晶体生长和布朗扩散引起的聚集动力学，利用第六章所描述的晶体尺寸分布的各阶矩对时间的一阶导数所构成的自封闭的一阶常微分方程组，采用庞得里亚金极大值原理，以温度为控制变量，在满足某些约束条件下，以最大平均尺寸和最大晶体重量平均尺寸为性能指标，计算出了螺旋霉素间歇结晶的最优温度—时间曲线，并同线性加热和自然方式进行了比较。

It is the presence of other termites, in sufficient numbers at close quarters, that produces the work: they pick up each other's fecal pellets and stack them in neat columns, and when the columns are precisely the right height, the termites reach across and turn the perfect arches that form the foundation of the termitarium.

那是因为其他白蚁的存在，在封闭的区域有足够数量，便产生了工作：他们拾起彼此的粪便颗粒堆成整齐的柱子。当柱子准确地达到了适当的高度，白蚁们来回交叉地穿过这座形成它们的窝巢的基础的完美建筑。

Using the sign if icance of these characters in the aspect of sediment environment, th is paper analyzed C and O iso tope ofQ ian jiang Saline lake and educed conclu sion s: there are good relat ivity betw een the change of clim ate and sedim ent\r\nenvironm en t and the con tent's change of C and O iso tope from high to low; it is aobturated saline lake of\r\ninnerland tow ard Q ian jiang saline lake, and the con ten t of C and O iso tope was primarily decided that Ciso tope is - 5‰ and O isotope is - 2‰.

主要介绍了碳和氧同位素的地球化学特征，利用这些特征在沉积环境方面的指示意义分析了潜江盐湖的碳、氧同位素并得出了以下认识：碳、氧同位素值的高低变化与气候的变化和沉积环境的变化具有很好的相关性；潜江盐湖是一个封闭的内陆盐湖，就该湖而言，其碳同位素值可初步确定为- 5‰，其氧同位素值为- 2‰。

James fights all kinds of rationalism since its theory is superficial; its system is closed; and it shows us a static world, which has no practical life, no conflicts in it. Actually, the world is unfit for the true world, which is open, unperfect, and we live in it effectly.

詹姆士反对一切形式的理性主义，认为理性主义的哲学思想是肤浅的，所提供的理论体系是封闭的，所描绘的绝对统一的世界是没有实际生活、没有矛盾的、静态的世界，这与现实的、开放的、不完善的宇宙不相符合。2。

We will separate the manufacturing place to ensure the hygiene and cleanning of product, to catch the cure requirement. It will be had good aerator and serious hygiene system. We will surveil all proccess on product from raw matterial to finish goods; Equipments are almost special, e.g. measure, mixing and so on. There is relevant functionaries for every equipment, they will inspect equipment aperiodically to avoid any pollution. We did body checking for every operator, they can only work with good healthy and stated work clothes. 2. Working equipment: A:Plastic injection machine.

为保证产品的卫生清洁，满足医用要求，我们将对生产现场进行隔离，形成了一个相对封闭的环境，并配备有良好的透风设施，制定了严密的卫生制度，从原料进厂到成品入库的全过程，都有专人对卫生状况进行监控，确保了现场环境的整洁；在设备管理方面，大部分设备都是专用的，如计量设备、掺混设备等，而且每个设备有相应的负责人对设备进行不定期巡查，以防因设备不干净而对产品造成污染；对每一个操作人员，在上岗前都进行了体检，只有达到健康要求的才准许上岗，并且在工作期间，必须穿戴好定做的工作服。

Among all the populations in the world we know, the frequency of DPB1*0301 in Drung and 2801 in Lahu are the highest. It can be explained by random drift, or by certain selection pressure in an isolated environment.

其中拉祜族的DPB1*2801和独龙族的DPB1*03011频率高于目前已知的任何人群，形成了自己的遗传特色，这很可能是遗传漂变造成的，也有可能是封闭的环境下某种特殊的选择压力造成的。

It is unrealiable because the only authoritative ground for this figure——a figure that would turn life into a determinate figure for consciousness would be the system of consciousness itself , ie, the system of knowing, here taken as a closed tropological system ie, a system of substitutions and exchanges based on a knowledge of entities and their exchangeable properties.

这是因为这个比喻唯一有权威的根据——这个比喻将会把生命变成对意识的规定的比喻——将会是意识体系本身，即认识活动的体系，在这里被认为是一个封闭的转喻体系（即，建立在对诸实体entities与其可交换的性质的认识之基础上的一个诸替代和交换的体系。

The course that people are getting deeper and more complete cognition on women's school education reflects the transformation from the external and utilitarianism instrumental orien'tation of women concept to the internal value orientation which is publicizing women's subjectivity. It marked that people were developing from a closed, undirectional thinking model and a view of Chinese and western tradition against modern duality to an opening diversification and rationality.

人们对女子学校教育的认识不断加深、完整的过程，凸显出妇女观念从外在的、强调功利的工具性取向转变为内在的、张扬女性主体性的价值性取向，标志着人们正从一个封闭的单向思维模式及中与西、传统与现代二元对立的视域向开放的、多元化、理性化的方向发展。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。