以...为目标

The sell and price of (NH4)2SO4 must be taken into account on a large scale industrial boiler. Present pollution charge system can be seen to have some disadvantages and SO2 allowance-trading system must be perfected.

通过经济性分析，得出目前实施的排污收费制度存在一定的弊病，有必要完善以总量控制为目标的排放许可权交易制度。

The rule of the quick buck often clashes with the law of human dignity.

以追求讯速利润为目标的法则会与尊重人类的法则起冲突。

Cascade multilevel converter is made up of modules. It can be normally divided into two kinds: one with same modules and the other with different modules. This paper analyzes the relationship among the maximum number of output voltage level, the number of cascaded modules, and the input voltage ratio and THD of output voltage in different kinds of cascade multilevel converter. Then, some guidelines for making up cascade multilevel converter are given.

级联型多电平变换器类似于积木化的结构，本文按模块单元的结构形式，将级联型多电平变换器分为相同单元和不同单元两类，以输出最大电平数为目标，系统地分析模块单元个数与最大输出电平数、输入直流电压与最大输出电平数、以及输出电平数与谐波畸变率之间的关系，从中归纳得到构造级联型多电平变换器的指导原则。

According to the dynamics analysis of the cotton sliver coiling process,by considering the minimum friction of cotton sliver caused by screwy pipes as objective function the design of screwy pipes of can coiler is explained based on the theory of the variational direct-method.

对棉条圈条过程定量地进行了动力学分析，以棉条所受曲线斜管摩擦力最小为目标函数，基于变分问题直接法原理设计出圈条盘螺旋形曲线斜管。这种螺旋形曲线斜管充分利用圈条盘的转动对棉条产生的离心力甩摆作用，使棉条所受曲线斜管摩擦力较小，从而使出条更顺畅；在一定程度上降低了圈条盘螺旋形曲线斜管堵眼频率与条筒乱条几率，使其更适应现代并条机生产高速化的要求

This paper aims at the time performance of the entire system and uses the task flow graph as the system model.Based on it,an evaluation function based on the priority is achieved,then a new algorithm combining the search space smoothing technology with discrete particle swarm is proposed and whose parameters can be adjusted automatically.At last,the combination problem is addressed.

以提高系统时间性能为目标，利用任务流图构造系统模型，在其上实现了基于优先权的评价函数，提出了搜索空间平滑技术与离散粒子群算法相结合的软硬件划分算法，并且解决了两者的融合问题，并能根据系统信息动态适应调整算法参数。

In view of the special nature of long distance parallel conduit system, this paper took the minimum annual cost of the system as objective function and built an optimal design model by using dynamic programming.

针对长距离并联输水系统的特点，以年费用最小为目标，应用动态规划建立了优化设计数学模型。

A model for the optimization design of orthotiopic steel deck plate was piovided, in which the structural cost was taken as the objective function, and the rigidity and allowed stress of the orthotropic steel deck plate were taken as the constraints.

以计入结构材料重量和焊缝体积的结构造价为目标函数，建立了考虑局部受力和稳定容许应力约束的钢桥面加劲板优化分析模型。

As a most essential driving part, gear is widely used in all kinds of machines in many important industrial fields.

齿轮是各类机械中应用极为广泛的重要传动零件，采用以净形或近净形为目标的精密锻造成形工艺生产齿轮件，适应高效、精密、绿色清洁的21世纪先进制造技术的发展趋势，成为未来齿轮加工变革的主要方法之一。

The company targeted on the development of electric-drive air conditioning technology, devotes herself to exploiting energy-efficient, environment-friendly, integrated electric drive air conditioner by combining Power Electronics, information technology and intelligent control with automotive air conditioner technology.

公司以发展车用电驱动空调技术为目标，致力于将电力电子技术、信息技术和只能控制技术与车用空调技术有机结合，开发高效节能、环保、冷暖一体化电驱动空调。

This article is based on the optimal power flow calculation system optimization, the price in generating cost for target function, through constructing Lagrange equation using matrix calculation, to find the shadow price equation and the proportion of each node determine the price, the coefficient of power transmission and power nodes.

本文是基于最优潮流计算对系统电价最优化，以发电成本为目标函数，通过构建拉格朗日方程，运用矩阵计算对方程求解，寻找影子价格确定各节点电价的比例系数，由此求出节点电价和传输电价。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。