查询词典 cost performance

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

Analyse the technology principle of program tracking, step-in tracking, conical scan tracking and singleshot tracking, and contrast the advantage and disadvantage of them. Select program tracking and conical scan tracking considering performance and cost.

二、对程序跟踪、步进跟踪、圆锥扫描跟踪和单脉冲跟踪这四种自动跟踪技术的原理进行了具体的分析，并比较了它们各自的优缺点，从性价比的角度，选择了程序跟踪与圆锥扫描跟踪相结合的方式。

The total retail cost of the additional factory performance parts that are now standard in the WC Team Edition total more than $290, but the Street Price will only increase by $10 over the SP2!

零售业总成本的额外工厂的表现部分，现在的标准，在碳化钨队的总版以上的290美元，但街的价格，只会增加10元以上的SP2 ！

Along with our country the development of the socialism market economy, the business enterprise want in the market of the vehemence the competition to win actively, have to be produce the value cost of each link of conduct the activity economy, according to the development of this situation, the production of strip mine has to take economic performance as a premise and make sure reasonable of shell to adopt than is one of the important links.

瓮福有限责任公司，贵州，550002）摘要：随着我国社会主义市场经济的发展，企业要在激烈的市场竞争中赢得主动，必须在生产经营活动的各个环节重视成本节约，根据这一形势的发展，露天矿的生产必须以经济效益为前提，确定合理的剥采比是重要环节之一。

Its strongpoint is low cost , easy deployment and satisfy the request of NGN in function and performance.

缆桥接入技术的优点是布网简单、成本低廉，可以提供满足下一代网络的功能及性能。

The manufacturer will have to find a compromise between lightness and sturdiness, performance and cost

厂商总是设法找出一个折衷方案，即要兼顾轻便和坚固，用途和价格。

Firstly, on the basis of analysis for development of industrial organization theory, the paper analyzes natural monopoly for electricity industry respectively from produce rule and determinant method, studying measure methods for monopoly degree for electricity generation market, analyzing quantitatively for natural monopoly output on the terms of cost subadditivity and analyzing current market structure for Chinese electricity industry with "Structure-Conduct-Performance" method of industrial organization theory.

在分析产业组织理论的发展动态的基础上，首先分别从生产规律特点和自然垄断的判定方法对电力产业进行自然垄断分析，研究了发电市场的垄断度的度量方法，依据成本劣可加性的定义对电力产业的自然垄断产出进行量化分析；同时按照产业组织理论的"S-C-P方法"分析了目前中国电力产业的市场结构。

Fixed pivot leading-trailing drum brakes are extensively applied on heavy duty trucks, coaches and semi-tractors, because it's brake performance is steady without reference to positive revolve or reverse revolve, the structure is simple, cost of production is low and parking system is well-suited to subjoin.

支点固定式领从蹄鼓式制动器由于其顺、倒车时制动性能不变，且构造简单，造价较低，便于加装驻车制动机构，故现在广泛应用于重型载货车、大客车和半挂牵引车。

FOR THESE SUBORBITAL ENGINEERS, operational safety and low cost are driving their designs rather than attempting to eke out the last bit of performance from the engines, as Big Aerospace personnel might do to fulfill government requirements.

对这些次轨道工程师来说，操作的安全性和低成本是驱策他们设计的动力，而不像大型航太公司的人员为满足政府开出的条件，才竭尽所能地从引擎搾出最后一丁点儿性能。

It was a three issue superscalar processor which offered high performance at a low cost.

它是一个高性能低成本的三级并发超标量处理器。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。