负荷

ABSTRACT Introduces three methods that can adjust refrigerating output according to the variation of load aimed at the varying duty condition during the practical operation process of refrigeration system,frequency inverter technique,parallel unit with several compressors and liquid refrigerant storing method.

摘 要针对制冷系统实际运行过程中存在的变负荷工况，介绍三种根据负荷变化调节制冷量的方法：变频技术、多机并联压缩机组以及液体制冷剂储存方法。

The results of trickling biofiltration experiments purging benzene vapor show that volume removal loadings of biofilters are increased along with the volume loadings, but the relationship between them are non-linear.

混合菌生物滴滤塔净化含苯废气的研究结果表明：滤塔填料的体积去除负荷随体积负荷的增加而增加，但二者并非线性关系；气体停留时间越短，滤塔的净化效率越低；活性炭滤塔的净化效率较高，但压降要远高于拉西环滤塔的压降。

Objective to appraise the diagnostic value of Exercise stress test and exercise single-photon emission computed tomography to coronary artery disease.

目的评价运动负荷心电图试验、运动负荷心肌灌注核素显像对冠状动脉病变的诊断价值。

Tension Control of the book's introduction, from the tension control Uncoiler principle, characteristics, classification, function and implementation are described; vector transformation from the basic principles of control, inverter control technology boards T400 model and outlines the aspects of how to control the tension the problem; In addition to the tension control roller load balancing and analysis were summarized, the principle of load balancing, sorting and implementation.

有关开卷机张力控制的介绍，从开卷机张力控制的原理、特点、分类、作用及实现进行了阐述；从矢量变换控制的基本原理、变频器的控制模式及T400工艺板方面概括了张力如何控制的问题；另外对张力辊的负荷平衡控制进行了总结和分析，有关负荷平衡的原理、分类和实现。

Analyze quantitatively chilled water with large temperature difference how to affect the performance and energy consumption of pump, chiller, fan-coil unit and surface air cooler and cooled water with large temperature difference how to affect pump, chiller and cooling tower.

对大温差系统的推广应用具有一定的参考价值。分析了外围护结构各部件如外墙、窗户的遮阳性能、玻璃性能、窗墙比、屋顶对空调负荷的影响，得出建筑总负荷与各围护结构的热工性能基本上成正相关。提出了要降低能耗，对围护结构应该采取的措施。

This paper experimentally studied smash characteristic of com straw, including mainly performance parameter of pulverizer such as consumption of electricity per ton, hour productivity and hammer patch thick under the condition of different moisture rates and sieve pore diameter .

本文主要对不同含水率、筛孔直径下粉碎机的吨料电耗、小时生产率及锤片厚度等性能参数进行了玉米秸秆粉碎特性试验研究，结果表明：对于相同筛孔直径，随着含水率的增大，负荷输入功率基本不变，吨料电耗增加，生产率降低；对于相同含水率的玉米秸秆，随着筛孔直径的增大，吨料电耗、负荷输入功率降低，小时生产率增加；度电产量和粉碎效率随着锤片厚度的减薄而增加，当锤片厚度为4mm时，既能够保持较高的粉碎效率，又保证了一定的耐用度。

To study the effects of no load voltage step response index on disturbance quality of power system for self excited shunt excitation system, this paper analyzes the types of power system disturbances and disturbing qualities, establishes the different groups of self excited shunt excitation system according to the different overshoot in identical rise time and the different rise time in identical overshoot.

1电力系统扰动项目的选择为研究自并励静止励磁系统的发电机空载电压阶跃响应指标对电力系统扰动品质的影响，首先确定电力系统扰动种类。选择了反映大干扰稳定和小干扰稳定的发电机近端三相短路0.15切线路、远方三相短路0.15切线路、高压母线突加无功负荷、甩负荷、小干扰振荡模式计算等5个项目。

The influence of self-explanation as questions or questions with answers on cognitive load and achievement have no significant difference.(9) Though the management of cognitive load by multimedia instructional design, material character and learners\' individual differences have significant moderate effect.

9在通过多媒体教学设计控制认知负荷的过程中，学习材料和学习者个体差异在其中起着重要的调节作用，因此，多媒体学习中认知负荷是由教学设计、材料和学习者三者共同作用的结果。

Contrariwise, when material is less abstract and learners have more prior knowledge, teaching explanation doesn\'t increase germane cognitive load, but induce better transfer achievement.(8) In difficult material learning, self-explanation reduced intrinsic cognitive load and better transfer achievement.

8在难度较大的材料学习中，提示自我解释降低了内在认知负荷，提高了迁移测试成绩；在难度较小的材料学习中，提示自我解释增加了被试的相关认知负荷，提高了迁移测试成绩。

Second,as to university man,physical fitness walking,physical fitness jogging and bicycles sports loading were more beneficial to the improvement of the function of the heart and lung,however shadowboxing and broadcast gym were less beneficial to it for their low sports loading.

根据本研究制定的负荷方案和实验的结果得出，健身走运动，健身跑运动，自行车运动的运动负荷更有益于大学生心肺功能的提高。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。