This paper reviews the present state of application of D-mannitol in the synthesis of natural products.
介绍了甘露醇作为手性材料在具有重要生理活性天然产物合成中的应用概况。
The present state of production and application for epoxy ethane in China is described in this paper.
本文就我国环氧乙烷的生产现状及其应用作一介绍。
Heating cutting technology and the present state are briefly introduced. The research object, key technique and the application prospect of this technology are described.
简要介绍了加热切削技术及其现状，叙述了加热切削技术的研究目标、关键技术和应用前景。
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