primary design stage

In China, the design of mobile newspaper is still at a primary stage, and there is few relevant research and discussion on its layout design.

在中国，到目前为止手机报的设计还处于初级阶段，有关手机报界面设计的相关研究与讨论也少之又少。

To the actualities that domestic study of self-timed circuit design principles is just in the primary stage, a in-depth study of handshake protocol and delay assumption have been done.

针对目前国内对自计时电路设计原理方面的研究才刚刚起步的现状，采用抽象和具体相结合的对比研究方法，对握手协议和延迟假定进行了深入研究，并对研究结果进行了直观的说明。

Currently, the hydraulic performance of the submerged pump system at home and abroad is still lack in-depth understood, and its optimum hydraulic design research is still in primary stage.

目前国内外对潜水泵装置的水力性能还缺乏深入了解，潜水泵装置优化水力设计的研究仍处于起步阶段。