不热的

Apparently, the approximate controllability doesn"t hold for generally linear parabolic equations with bounded control. It doesn"t hold for the semilinear heat equations presented there,either. Then, it is proved by analyzing its" solutions that no matter how long the time T is , there are targets that can"t be approximated by the solution of heat equation with Dirichlet boundary conditions;If a given target satisying certain conditions can be reached by the solution of heat equation .

本文先针对两个具体的半线性热方程系统证明了控制加约束后系统是不能控的；然后通过分析方程的解，对带位势及Dirichlet边界条件的热方程系统，无论时间多大，都存在不能控的目标；文中还证明了满足一定条件的目标可达。

The results showed the crystallinity of the modified PET decreased with the increase of the content of NPG, but the heat shrinkability was improved obviously. Amorphous polyester material that woul...

结果表明，通过NPG共聚改性的PET的结晶能力随NPG用量的增加而降低，热收缩能力有了明显的提高；无定型区增大，获得了在通常情况下不能结晶的PET无定型材料，从而使改性PET薄膜在拉伸时保持较高的取向度，并在高于其Tg时发生解取向热收缩；拉伸温度、拉伸倍数等拉伸工艺对于聚酯薄膜的热收缩率有着显著的影响。

Some related specilist point out ,the modernists dependent upon mobile phone more and more , the mobile phone is not the same as the common ionization radiation ,the wavelength of electronmagnetic wave emanated by the mobile phone is 900MHz to 1800MHz. Although, the DNA has not been damaged by it to certain degree yet , but this microwave can radiate to the depth of encephalic 4 to 6cm . stimulate the water molecules and cells moving ,result in the temperature of corresponding tissue raising 0.1c, induce the fever reflection such as the headache,disfunction of blood supply in brain, cauterized feeling on the skin of face ,ear as well as the skin around the ear etc .also induce the non-fever reflection such as the changing of sleeping style ,raising blood pressureand and disfunction of recognization etc.

0有关专家指出，现代人越来越离不开手机，但不同于普通的电离辐射，手机发射的电磁波波长为900MHz--1800MHz，虽然尚没有达到损伤DNA的程度，但此种微波可以辐射深度达颅内4--6cm，刺激水分子和细胞发生运动，导致相应组织温度上升0.1c，引发如头痛，脑供血障碍，面部皮肤烧灼感及耳部及耳周皮肤烧灼感等热反应，而且可以引起诸如睡眠方式的改变，血压升高，认知功能障碍等非热反应。

Because from the principle of thermal cycle perspective, energy efficiency is too high, heating effects, dehumidifying effect is not necessarily good, but affect the user's use.

因为从热循环原理看，能效比太高，制热效果、除湿效果不一定好，反而影响用户的使用。

In the impact feeling8.0N/m water cannot lay aside surpasses for 120 hours Cannot put inis loaded with the aqua fortis and in the strong sulfuric acid liquiddips After cannot achieve 10 minutes dangerous behaviors the chemicalreaction the detonation Cleanly washes using the clear water Lattercoolly does The product design has may transfer the size the livegrommet Finger when operation cuts through a revolution is thebedding bag is tight When does not operate So long as rotates thefinger about then may the automatic pine open the snare The safeconvenience is simple Pure natural not any to cancer chemistry dyeand chemistry pigment In the watery solution achieved the certaintime may change color the putrefication environmental protectionmaterial quality May pull outside the pulling force scope Thestandard general string YOYO ball string, the long ball string, theshaky ball string, slides the ball string.

单手冲力达到20kg的爱好者。3， 21stx12x2适合双手拉力达到50kg。可运行时间达3000小时。抗冲击力达到50kg每秒。最高时速3000公里。单手冲力达到40kg的爱好者。产品遇火即燃烧。熔点176.2oC生成热-573KJ/kg。爆热5343kj/kg。燃点180oC。冲击感度8.0N/m水中不能放置超过120小时。绝不能放入装有浓硝酸和浓硫酸的液体中浸洗。更不能达到10分钟之危险行为的化学反应后爆轰。清洁应用清水洗涤。后凉干。产品设计有可以调动大小的活绳圈。手指在操作时穿进一转即被套紧。如不操作时。只要把手指左右转动一下便可以自动松开圈套。安全方便简单。纯天然没有任何至癌的化学染料和化学色素。在水溶液中达到一定时间可变色腐化的环保材质。在拉力范围外可拉断。的标准通用绳子。

It can conclude that epithermal neutron has a good BNCT curative effectiveness; thermal and fast neutrons are not good enough for BNCT use.

说明超热中子具有良好的BNCT治疗效果，热中子和快中子不适宜用于脑部BNCT治疗。

Operation analysis and investigation show that it is caused by the inappropriate design of hot vapor bypass control system, so the revamping has been carried out as follows: The diameter of hot vapor bypass pipeline has been enlarged from DN 40 mm to 80 mm, and the pressure difference of hot vapor bypass adjusting valve decreased from 50 kPa to 35 kPa; A vent pipeline for non-condensable gas fro.

改造的措施主要有：增大了热旁路管道的直径(由DN40mm增大到DN80mm)，并降低了热旁路调节阀的压差取值(由50kPa降低到35kPa)；增设一条自冷凝器壳程出口至回流罐的不凝气放空管道；对脱丁烷塔分程控制系统进行了改造，即将调节器输出信号的0-45%，55%%-100%分别用于控制热旁路调节阀和放空阀。

Light and radiant heat both travel through a vacuum,orthe sun's light and heat would not reach us.

光和辐射热都能穿过真空传递，否则太阳的光和热不会到达地球上。

Light and radiant heat both travel through a vacuum, or the sun's light and heat would not reach us.

光和辐射热都能穿过真空传递，否则太阳的光和热不回到达地球上。

Light and radiant heat both travel through a vacuum,orthe sun's light and heat would not reach us.

光和辐射热都能穿过真空传递，否则太阳的光和热便不会到达地球上。

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。