1·The ecological architectural design is the trend of Hi-Tech architecture development, and Three levels of idea, method and technique are studied.
高技术建筑的生态化是近年来的发展趋势，对生态化的研究可以从理念、方法和技术措施三个层面进行。
2·On the basis of the research of microgravity environment, space radiation on bio sample mutagenesis, the theoretical basis of hi tech breeding with space mutation technique is discussed.
在综述微重力环境、空间辐射等对生物样本的诱变研究成果的基础上，论述了应用空间诱变技术进行高科技生物育种的理论基础。
3·Described in the paper is the processing technique for hi-finish dies for high - precision cold-drawn steel tube.
介绍了用于冷拔高精密钢管的高光洁度模具的加工工艺试验情况。
4·The inevitability and feasibility of application of the grouping technique to production bf hi-frequency welded tubes are discussed from both theoretic and practical point of views.
从理论和实践方面论证了成组技术在高频直缝焊管生产中应用的必然性、可行性。