查询词典 variable density system

When the swirl variable device is part-opened, because swirl has some effect on the second injection, second injection timing has distinctly effect on fuel consumption, and the fuel consumption change fluctuantly with twice injection timing. When the tumble variable device is adopted, second injection timing also has effect on fuel consumption, but there is only one point that the fuel consumption is lowest. When the load is bigger, the second injection point where the fuel consumption is lowest is earlier than the smaller load.

在可变涡流结构中，当阀片处于非全开状态时，由于涡流运动对二次喷油的作用，二次喷油正时对发动机的比油耗存在明显影响，发动机比油耗随喷油正时改变呈较明显的波动状；在可变滚流结构中，二次喷油正时对发动机比油耗同样存在影响，但最低油耗点只有一个，当负荷较大时，最低比油耗所对应的喷油正时要更早一些。

For studying the performance of a self-sensor in the driving mode of variable-voltage control and variable time of flow control, a piston displacement measurement and control software based on LabVIEW (version 7.0) was designed, and the experimental study was carried out.

为了研究自传感器的性能，设计了一套基于虚拟仪器的活塞位移测控系统，分别对变电压驱动和变可控硅的导通时间驱动方式下的自传感器特性进行了实验研究。

In this paper, a new radial piston pump of self-assignment variable valve core form is introduced , which can take the corresponding variable form according to the different working condition demands.

摘 要：本文介绍一种全新的阀芯自配流变量形式的径向柱塞泵，其特点是根据不同的工况需求，可以采取相应的变量形式。

The variable name and modifiers can themselves contain a variable reference, and this partakes of the product as well

变量名和修改符本身也可以包含变量引用，而且要处理所有乘积

In the population model, the dependent variable y is related to the independent variable x and the error u as

在总体模型中，因变量y与自变量x和误差项u关系可以写作

It is an error if the variable name is not bound to any value in the set of variable bindings in the expression context.

如果变量名在表达式上下文的变量绑定集合中没有被指派任何值就会发生错误。

In the population model, the dependent variable y is related to the independent variable x and the error u as

在总体模型中，因变量 y 和自变量 x 和误差

In the population model, the dependent variable y is related to the independent variable x and the error u as

在总体模型或称真实模型）中，因变量y与自变量x和误差项u关系如下

states the characteristics of the condensing-temperature control in variable condenser water flow of central air-conditioning systems. analyses the effects of variable condenser water flow on cop of centrifugal chillers. indicates that although the negative effect is not negligible, it is less than the positive effect on pump's energy-saving and the condensing-temperature control is helpful to the resulting energy-saving for air-conditioning systems by combining with an example.

摘 要：论述了在集中空调冷却水变流量系统中冷凝温度控制法的特点；分析了冷却水变流量对离心式制冷机性能系数的影响；结合实例说明虽然冷却水变流量对于冷水机组制冷性能的负面影响不可忽略，但这一负面影响较对于水泵节能的正面影响要小，采用冷凝温度控制法对于空调系统综合节能是有益的。

States the characteristics of the condensing-temperature control in variable condenser water flow of central air-conditioning systems. Analyses the effects of variable condenser water flow on COP of centrifugal chillers. Indicates that although the negative effect is not negligibleit is less than the positive effect on pump's energy-saving and the condensing-temperature control is helpful to the resulting energy-saving for air-conditioning systems by combining with an example.

摘 要 论述了在集中空调冷却水变流量系统中冷凝温度控制法的特点；分析了冷却水变流量对离心式制冷机性能系数的影响；结合实例说明虽然冷却水变流量对于冷水机组制冷性能的负面影响不可忽略，但这一负面影响较对于水泵节能的正面影响要小，采用冷凝温度控制法对于空调系统综合节能是有益的。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。