使不稳定

On the view of entropy, the action for human to explore and to use the nature resource can enhance the speed of entropy growing, which is harmful to the environmental system＇s stableness and regulation.

自然界中的能量与物质系统的运动是遵循热力学定律的0从熵的角度来看，现在人类开发利用资源的方式，使系统熵增加速，不利于环境系统的有序和稳定。

And its high thermal stability and glass transmission temperature are beneficial to the distribution of the nano-particles, accordingly avoiding precipitation among the in the synthesis process of the polyimide.

其高热稳定性和高玻璃化转变温度有助于稳定以纳米尺寸分散的微粒，不使其聚集，对合成杂化材料十分有利。

TW-600 Outside pumping vacuum packer: using air pressure style sealing, and it is clean and reliable; adopting the Japanese and Korea technology and equipment, is provided with dual functions of vacuum and charge; the whole machine circuit is from Korea and is programmable control, and is stable; sponge shape silica gel bar to ensure a fine airproof after pumping out the air; using the variable stroke air cylinder to make sure the sealing is neat and tidy; it is a perfect safe packaging after the product charge; stainless platform, and can adjust the height freely in terms of the size of the packaging goods; and also can change the work place easily for its installing truckle; simple style storage case to store the vacuum packaging bag or spare part in common use; Light touch style padding switch can be operated conveniently.

TW-600外抽式真空包装机：采用气压式封口，干净、可靠；日、韩先进的技术设备，具有真空及充气双重功能；整机电路由韩国可编程控制，性能稳定；海棉状硅胶条，确保抽气后密封良好；采用变行程气缸，使封口整洁平整；充气后产品理想的安全包装；不锈缸工作台，根据包装物的大小，任意调整高低；装有脚轮，可任意移动工作地点；简易型储物盒，存放真空包装袋或常用备件；轻触式脚踏开关，方便操作。

To compensate the descent of pH for the heat-up, exalting the Tris-HCl buffer's pH can avoid the abscission of the purine and make the long sequence PCR go on smoothly. The GC-rich template's secondary structure is complex and stable. The organic reagent methylamine contributes to uncoil the secondary structure.The pfu DNA polymerase has more fidelity and thermostability than Taq DNA polymerase.

高GC含量使模板二级结构复杂而稳定，一般热启动难于解开，而变性温度过高、时间过长又不利于DNA聚合酶的活性作用发挥，于是借助能缓释模板二级结构的有机试剂甲胺扩增高GC含量模板。pfu DNA聚合酶比Taq酶有更高的保真复制性能和热稳定性，更有利于高GC含量模板的扩增。

Superior geographical environment, strong technical force, unique production process technology, modern equipment and the advanced and practical stable and reliable product quality, so I became unshaped refractory, light burning stereotypes Products, one of professional manufacturers.

优越的地理环境、雄厚的技术力量、特有的生产工艺技术、现代化的先进实用装备和稳定可靠的产品质量，使我公司成为不定型耐火材料、轻烧定型产品的专业生产厂家之一。

First the passivity of motor rotor flux subsystem is proved. Workless forces have no influence on the energy balance equation and have no effect on the asymptotic stability. Then it is discussed that the system can stably track the reference rotor flux without rotor flux observer. At last an adaptive PBC strategy is proposed with regard to the rotor resistance change. A clear and simple design for the speed control subsystem with inner current loops is presented.

证明了感应电机转子磁链子系统的无源性，找到系统能量耗散特性方程中的无功力，它不会影响系统的稳定性，得出无需转子磁链观测反馈即能稳定跟踪转子磁链的参考值，同时考虑电机转子电阻在运行中发生未知变化，设计自适应调节器使系统对转子电阻呈现鲁棒性，构建了带电流内环速度控制系统。

Latest research indicates that,if eating a great deal of undone eggs for a long time,antibiotin protein in undone egg white can integrate with biotin internal the body as a sort of steady compound,making biotin can't be absorbed by intestinal wall and leading to energy ennui,muscle ache,hair falling off,skin inflamation,appetite letdown,weight droping and so on.When eggs pass through the intestinal tract,it's easy to zymolysis and transformation,sometimes it may appear nitroso compound,which has the function of causing cancer.

最新研究表明，若长期大量吃生鸡蛋，生鸡蛋清内的抗生物素蛋白与体内生物素结合成一种稳定的化合物，使生物素不能被肠壁吸收，则可导致精神倦怠、肌肉酸痛、毛发脱落、皮肤发炎、食欲减退、体重下降等；生鸡蛋经过肠道时，容易发酵变质，有时可能产生亚硝基化合物。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area;2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support;3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier;4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling;5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene PolymerizationIn this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that:1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS;2.co-mlling time had no obvious effect on the texture of support after 12 hours;3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究结果表明，MAO不仅仅只和乙醇作用，MAO还与MgCl_2本身有一定的作用，这是一个极为重要的发现；3、通过ICP和EDX表征，发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布；4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能，特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化，并且催化剂寿命长，表现出稳定的动力学行为，最终获得了高堆密度(大于0.35g／ml)的球形聚乙烯颗粒；5、本文选择MSPC-5为研究对象，考察了聚合反应参数对催化剂的活性及其聚合物的影响，研究发现：不同的烷基铝对催化剂具有非常重要的影响，特别足TIBA对MSPC-5的助催化活性最高，烷基铝的加入量有一个较佳值，聚合温度为80度时活性最高，H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小；、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨，制备出了一种的新型的氯化镁载体，并将该载体用于多种单活性中心催化剂的负载化研究，研究表明：1、通过BET、XRD的表征，再次证实了MAO与MgCl_2之间具有直接作用，与XPS的研究结果相一致；2、当研磨时间高于12小时时，延长研磨时间对载体的结构没有显著的影响；3、将配合物3负载于共研磨时间不同的一系列载体上，乙烯聚合结果表明，尽管共研磨时间对负载催化剂的活性具有明显的影响，但是它对聚合物的性能以及催化剂的影响不明显。

Dealcoholization temperature markedly influences the surface area and porosity of the resultant MAO-supports. When the support was pretreated at lower or higher temperature, the corresponding MAO-support shows very low surface area; 2.XRD and IR analyses indicate that MAO has reacted with the residual ethanol in the supports, which is an important manner to get MAO fixed on the carrier. Morever, XPS analyse indicates that MAO can also be coordinated with MgCl_2, which is another way to get MAO fixed on the support; 3.ICP and EDX analyses indicate that dealcoholization temperature not only determined the element content on the solid catalyst, but also influences the element distribution on the carrier; 4.The activities of the supported phenoxy-imine catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature. The support (MSP-5) obtained by treating MgCl_2·2.56C_2H_5OH at 160℃for 4 h, then modified by MAO is very effective for immobilizing complex 3, the resultant solid catalyst (MSPC-5) shows very high activity in ethylene polymerization, and its kinetics of polymerization is stable during the reaction process. Finally, PEs with spherical morphology and high bulk density (over 0.35g/ml) were obtained, without reactor fouling; 5.In this work, polymerization conditions such as alkylaluminums, Al/Zr ratio, temperature and H_2 had a pronounced effect on the activity of MSPC-5 and properties of PE;(3). New MgCl_2-Supported Single-Site Catalysts for Ethylene Polymerization In this work, a kind of new MgCl_2 support was obtained by anhydrous MgCl_2 co-milled with solid MAO, and it is a creative contribution. Then some single-site catalysts were supported on the new MgCl_2 support, and the resulted solid catalysts were tested in ethylene polymerization, the results indicated that: 1.XRD and IR analyses indicate that MAO does be coordinated with MgCl_2, which is in good agreement with the results obtained by XPS; 2.co-mlling time had no obvious effect on the texture of support after 12 hours; 3.In this work, MgCl_2 was co-milled with solid MAO for different hours, and then complex 3 was supported on these co-milled supports. It was found that co-milling time markedly influences the activity of solid catalysts, but it had negligible effect on the kinetic profile and the properties of resultant PE.

XPS研究结果表明，MAO不仅仅只和乙醇作用，MAO还与MgCl_2本身有一定的作用，这是一个极为重要的发现； 3、通过ICP和EDX表征，发现载体的脱醇温度直接影响着元素在固体催化剂中的含量及分布； 4、脱醇温度极大地影响着负载苯氧基亚胺类催化剂的活性和聚合物的性能，特别是原始载体经160℃活化4小时制备得到的固体催化剂MSPC-5的活性明显高于其他脱醇温度条件下制得的固体催化，并且催化剂寿命长，表现出稳定的动力学行为，最终获得了高堆密度(大于0.35g／ml)的球形聚乙烯颗粒； 5、本文选择MSPC-5为研究对象，考察了聚合反应参数对催化剂的活性及其聚合物的影响，研究发现：不同的烷基铝对催化剂具有非常重要的影响，特别足TIBA对MSPC-5的助催化活性最高，烷基铝的加入量有一个较佳值，聚合温度为80度时活性最高，H_2的加入使催化剂的活性明显降低且聚合物的分子量也减小；、新型氯化镁载体负载单活性中心催化剂催化乙烯聚合本文创造性采用固体MAO与无水氯化镁直接进行共研磨，制备出了一种的新型的氯化镁载体，并将该载体用于多种单活性中心催化剂的负载化研究，研究表明： 1、通过BET、XRD的表征，再次证实了MAO与MgCl_2之间具有直接作用，与XPS的研究结果相一致； 2、当研磨时间高于12小时时，延长研磨时间对载体的结构没有显著的影响； 3、将配合物3负载于共研磨时间不同的一系列载体上，乙烯聚合结果表明，尽管共研磨时间对负载催化剂的活性具有明显的影响，但是它对聚合物的性能以及催化剂的影响不明显。

Because of its light weight, small moment of inertia and small damping, the speed, angle of attack and direction of MAV in hedgehop will change suddenly when the gust including its magnitude and direction changes randomly. This movement will affect the stability of MAV.

突风环境是微型飞行器超低空飞行时无法回避的，因其重量轻、转动惯量小、气动阻尼小，风力和风向随机变化的突风将引起其飞行速度、迎角和方向的突然变化，使其不能稳定工作。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷