前言在载人轨道飞行期间,利用空间独特的失重环境来生产制作产品,已进入到探索发展的阶段。六十年代初期国外就开始了这方面的研究工作。开展了基本理论、工艺设计等方面的基础研究。利用落塔、飞机进行了实验研究。并在宇宙飞船、天空实验室、航天飞机的轨道飞行中进行了实践。获得了可喜的成果。失重环境中制造的半导体材料、光学材料、金属合金、生物制品以及药品等比地面上生产的性能要好,许多产品在地面上是无法制取的。所面 Introduction During the manned orbit flight, the use of space-specific weightlessness environment to produce production products, has entered the exploration and development stage. In the early 1960s foreign countries began research work in this area. Undertake basic research in basic theory and process design. The use of falling tower, the aircraft conducted an experimental study. And in the spacecraft, sky labs, space shuttle orbital flight practice. Get gratifying results. Semiconductor materials, optical materials, metal alloys, biologics, and pharmaceuticals manufactured in a weightless environment perform better than on the ground and many products are unobtainable on the ground. Face