preliminary design phase

The comparisons between the computations and experiments for the launch vehicle with strap-on boosters C of China and the launch vehicle with strap-on boosters N of Japan denote that the present method can satisfy the necessary accuracy and provide a rapid and economical method in the preliminary design phase.

对我国C火箭和日本N火箭的计算结果与实验数据比较，说明该方法能满足方案设计阶段精度要求。是方案设计过程中快速而经济的计算方法。

The degree of the design is: in a preliminary phase.

设计程度为初步设计。

A preliminary sketch of a design or picture. conceptual phase

一种设计或图画的草图。初步（草图）设计阶段

The preliminary design of the third phase project of Bac Steel has come to a full close and passed certification. The undergoing work is to design the constructional drawings and to make preparations for the field construction.

宝钢三期工程项目初步设计工作已全面完成并通过审查，现已进入施工图设计与现场施工准备工作阶段。

Whereas the design phase appertains to the middle and preliminary stage, the importance of control over the design risks is imaginable.

设计阶段在整个工程项目建设中属于中前期，因此对设计风险进行控制的重要性便可想而知了。

Preliminary Discussion on the Engineering Design Phase in General International Chemical Engineering Design System

浅谈国际化学工程通用设计体制中的工程设计阶段&在上海法国德希尼布（TECHNIP）化学工程有限公司工作体会