But most conventional CAD systems are in single form, and they have much inherent limitation such as long period of product-design, bad resource sharing, hard management and low openness.
但传统的CAD系统多以单独系统设计为主要形式，具有产品设计开发周期长、资源共享性低、管理维护困难、开放性差等固有局限性。
The time spent on human computer interaction is greatly reduced during the design process, as a results the problem on how to shorten the long period of structure design is largely solved.
大幅度地减少了人机交互时间，解决了高速列车流线型结构实体造型过程中设计周期过长的问题。
The seismic response of the structure with long period will be over estimated, if the standard spectrum or the design spectrum given by seismic risk analysis is applied.
而长周期结构采用规范设计反应谱或由地震危险性分析给出的场地设计反应谱计算所得的地震反应结果偏大。
There are many problems in traditional design method such as long period, structure redundancy, high cost and lack of validation etc.
传统的设计方法存在设计周期长、结构冗余、成本高、缺乏对结果的验证等诸多弊端。
It is high expense and long period to design and research and develop new typical Centrifugal Pump in traditional and half empirical and half theoretical way.
传统的基于半经验半理论的离心泵的设计和研制开发，费用高、周期长。
The traditional ways of agricultural machine's design leads to a long period of production design and high cost.
传统的农业机械设计方法开发周期长、成本高。
This paper proves the calculation of long-shore sediment discharge rates and design waves by making full use of the roses of wave factors (wave height, period).
充分利用波浪要素（波高、周期）玫瑰图推算沿岸输沙率和对设计波浪进行验证。
Based on experiential design and steady flow test, the traditional port design method needs a long developing period, moreover is hard to get the ideal scheme.
传统气道研发采用经验设计和稳流试验相结合的方法，研制周期长，且难以得到理想方案。
The compatibility of empirical design and scientific design will exist in a long historical period.
经验设计和科学设计兼容将在相当长的历史时期内存在。
The traditional ray′s distribution design based on 2 dimensions needs long period and is hard to meet anti-dazzling requirement.
由于传统的前照灯配光设计停留在二维的层面上，设计周期长，且配光效果差，很难达到防眩目的要求。
According to long period experience of work, it expatiates on the principle of structural design, the structural design method, the concept of general economic and technical index.
根据长期的工作体会阐述了结构设计的理念、结构设计的工作方法、影响结构的综合技术经济指标的因素。
Long period of operation of the four test - turntables has proven that the validity and rationality of the design method fully satisfy the requirements of high precision test turntable.
经四个转台长期使用验证该设计方法的有效性和合理性，完全满足了高精度转台的需要。
With the equalizing filter made by long period grating(LPG), we design the flat gain spectra of EDFA.
采用长周期光纤光栅均衡滤波器，设计出了光纤长周期光栅（LPG）均衡光纤宽带放大器，并进行了模拟计算。
Since a long period, only wind load and longitudinal braking force are taken into account in the design of steel bracing system of single storey buildings.
单层房屋钢支撑体系的设计，长期以来只考虑风力和吊车制动力。
Ultra long battery period of revolution: Uses the ultra strong wireless communication protocol, the low power loss design, may use for 3-4 months;
超长电池使用时间：采用超强无线通讯协议，低功耗设计，可以使用3-4个月；
The study of long-period seismic wave is significant to the seismic design of the large-span engineering structures with long auto-oscillation period.
用丰富的高质量数字强震记录对台湾集集大地震及余震的长周期地震动特性进行了研究。
The study of long-period seismic wave is significant to the seismic design of the large-span engineering structures with long auto-oscillation period.
用丰富的高质量数字强震记录对台湾集集大地震及余震的长周期地震动特性进行了研究。
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