查询词典 heat-unit

It's proved that the long duration response is stable under stationary random excitation, when the mean equation of the temperature in all parts of heat conductor shows no difference with the heat conduction differential equation under classical stationary heat conduction condition.

研究表明，在平稳随机激励下，导热系统的长时间响应也是平稳的。

Thirdly, fuzzy control method and PID method were used respectively to design temperature self-adjustment controller of carbon fiber concrete laminate beam,by the MATLAB simulation it is found that the PID method has higher speed but is more sensitive to the fluctuation of system parameter ,it is suit to the regulating when the heat transfer coefficient fluctuates diminutively and the structure has little heat transfer with the environment;fuzzy control can be adapt to the parameter variety in a large scale , it is suit to the regulating when the heat transfer coefficient fluctuates greatly.

分别采用PID和模糊控制策略设计了温差自调节控制器，通过MATLAB仿真研究得出：PID方式具有更快的调节速度，但对系统参数变化较敏感，适合系统与外界对流交换较微弱，对流参数波动不大时的调节；模糊控制能够适应系统参数在较大范围内的变化，适合对流参数波动较大时的调节。

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 heat preservation band pot take has certain pressure vapor as a heat source, has the heating area to be big, the thermal efficiency is high, the heating is even, the fluid material ebullition time is short, the heating temperature easy to control and so on and the inner layer pot body uses the acidproof heat-resisting Austria stainless steel manufacture especially, has the pressure gauge and the safety valve, the outlook is artistic, the installment is easy, ease of operation, safe reliable.

保温夹层锅以有一定的压力的蒸气为热源，具有受热面积大，热效率高、加热均匀、液料沸腾时间短、加热温度容易控制等特并且内层锅体采用耐酸耐热的奥氏型不锈钢制造，配有压力表和安全阀，外型美观、安装容易、操作方便、安全可靠。

Those are uniform heat source, double ellipsoidal heat source and the combined heat source.

系统地模拟和讨论了热源模型、试板尺寸、焊接速度和线能量对激光深熔焊残余应力的影响，阐述了激光深熔焊残余应力的形成与演化过程。

It is the phenomenon making use of state to change absorption of heat phenomenon in process , using that absorption of heat , makes that gas liquid cycle , unceasingly, endothermal and gives off heat, to achieve refrigeration's purpose.

它是利用物态变化过程中的吸热现象，使之吸热现象，使之气液循环，不断地吸热和放热，以达到制冷的目的。

Heat Conduction ; Density of heat transmission ; Fourier Equation ; Coefficient of heat conduction

由于热的良导体传热性能较好，稳态时内部温差小，通常是加大样品的长度，使两端的温差足够大，便于测量。

On heat-transfer analysis, the focus is on the analysis of the effect of heat-transfer mechanism, ash and thermal equilibrium and ash concentration on heat transfer.

在传热分析中，着重分析了传热机理，灰、热平衡及灰浓度对传热的影响。

In the paper, theoretic transfer heat model of HHCHP is established. After comparing experimental value and estimative value, we deduce that theoretic transfer heat model accords with actual condition, so we can estimate the heat performance of HHCHP by theoretic calculation formula.

同时建立了蜂窝热管平板式太阳能热水器的理论传热模型，通过对实验值和理论值的比较，得出进行简化后的理论模型在一般情况下与实际的情况是符合的，因此可以用理论计算公式对蜂窝热管平板式太阳能热水器的热性能进行估算。

Alcohol use in the heat lamp can be test-tube, flask, beaker, the evaporation of liquid to the dish to heat, heat the dry solids can be used when the test tube, dish, such as evaporation, and some instruments, such as cylinder set, graduated cylinder, funnel, and so does not allow alcohol use light heating .

在用酒精灯加热可以用试管、烧瓶、烧杯、蒸发皿来给液体加热，在加热固体时可用干燥的试管、蒸发皿等，有些仪器如集气瓶、量筒、漏斗等不允许用酒精灯加热。

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。