等容过程

For an arbitrary system of steady-flow and constant volume reactors, the concept of theattainable region is extended by the consideration of the recycle material from separation.

本文从化工过程系统综合优化的角度出发，以定态、等容反应过程为研究对象，在可得区内考虑分离回收的循环物流，通过几何方法分析总收率等值线与可得区的关系，导出了通用的反应-分离循环系统的最佳工艺条件方程。

Objective:To evaluate the effects of acute normovolemic hemodilution on the treatment of patients with tongue cancer.

目的：探讨在舌癌患者手术治疗过程中应用急性等容性血液稀释自体输血的临床效果。

Posing condiction in which the formula can be used is discussed. It is proved that it is only useful for zero-friction quasl-state process, non-quiet isometic or isobaric process.

本文较严格地导出了计算准静态过程功的公式，并讨论了该公式的适应条件，指出该公式只对无摩擦的准静态过程，以及等压或等容的非静态过程适用。

We think this process must be an isochoric process from the analysis of homogeneous nucleation.

我们认为，晶体中液相形核的过程更接近于一个等容的热力学过程。

From the lifespan of relay point of view, a reliability criterion was provided based on dynamic characteristics of anti-forces. Mathematical model of tolerance design with reliability was set up under usage of "stress-strength interference method", taken some critical dynamic characteristics as identification objects such beginning of contact separation speed, speed of collision and gag bit impact velocity. This model showed that lower values of characteristic parameters center and quantitative descriptively relationship between tolerance and product reliability. Multi-objective optimization model of relay tolerance distribution was completed when some factors such as reliability, processing costs and its feasibility into consideration. Based on Analytic Hierarchy Process to determine weight coefficients of various objectives, and usage of simulated annealing, this study performed optimal reliable tolerance allocation of space electromagnetic relay, and then key technology segments were analyzed, accompanying its course measured by controlling chart.

从继电器电寿命的角度，基于动态吸反力特性的配合提出了继电器的可靠性判别准则；在此基础上以触点分离初速度、触点碰撞速度以及衔铁碰撞速度等关键动态特性为判别对象，采用"应力-强度干涉法"建立了继电器可靠性容差设计数学模型，给出了下位特性参数中心值及其容差与产品可靠度之间的定量描述关系；综合考虑可靠度、加工成本及加工可行性等因素建立了继电器容差分配的多目标优化模型，基于层次分析法确定了各目标的权重系数，并采用模拟退火法实现了航天电磁继电器的可靠性容差最优分配；研究了继电器的关键工艺环节，并通过控制图对其过程能力进行了分析。

BACKGROUND: Tissue tolerance to oxygen privation during acute normovolaemic haemodilution with different fluids remains unclear.

背景：在急性等容性血液稀释过程中，使用不同液体组织对缺氧的耐受能力尚不明确。

They could be fitted by experience formulas as follows:For PVP: Dl =and for PBS.where0 is the initial value of DI, t0, t1 and t2 are characteristic time of non-isochoric deformation, isochoric deformation and orientation of erythrocyte respectively.

结果表明，红细胞在低粘介质中的动力学行为和它在高粘介质中的动力学响应有显著差异，除了等容变形和非等容变形以外，还有一个从定向到随机取向的变化过程。

It is found that the "heat pipe effect" is apparent in isosteric heating and isosteric cooling stages, which can greatly enhance the heat transfer effectiveness.

研究表明：在等容吸附及等容解吸过程中，有明显的&热管效应&，可大大提高吸附床内的传热性能。

The results show that oil production predicted by the curve of heavy-oil type is lower than that by the latter curve.

此外，本文还取得下列认识和结论：运用同一组分模型但不同的两组油气相对渗透率曲线（一组是常用&黑油&类型相对渗透率曲线；另一组是反映了凝析油气低界面张力特征的相对渗透率曲线）模拟牙哈—实际凝析气藏等容衰竭过程。

This suggested that the two heart preparations be metabolically and functionally stable and could be used for ordinary experiments.

Langendorff大鼠心脏和等容大鼠心脏在2 h灌流过程中高能磷酸化合物含量和血流动力学参数变化较小，两种离体大鼠心脏模型在所用实验条件下心脏功能和代谢显示出良好的稳定性，能够满足通常的实验需要。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失