To further reveal the relevant mechanism of the NISM on the rainfall of Hetao, we discuss the relation from two aspects of teleconnection and water vapor transport.

进一步通过遥相关和水汽输送揭示了北印度夏季风强弱与中国河套盛夏降水的联系途径。

The evolution of cyan couplers for color paper and color negative is introduced, including the peculiar characteristics of the different couplers, reaction mecha. nism and application condition.

介绍了彩色相纸及负片用青成色剂的演变，包括各种类型青成色剂的优缺点、现行负片中青成色剂的作用机理、应用条件。