此文结合肃宁机车车辆公司输砂系统，介绍气力输砂设计特点。
This article, in conjunction with the sand conveying system of the Suning Locomotive and Rolling Stock Company makes an introduction to the design characteristics of the pneumatic sand conveyance.
贾又福男，1942年出生于河北肃宁。中央美术学院教授、博士生导师。
Jia Youfu, male, born in 1942 in Suning County of Hebei Province, Professor and PhD Supervisor of China Central Academy of Fine Arts.
面对农村社会的重重问题，肃宁县自2008年开始思考并探索从根本上解决农村问题的方法和路径。
Su 'ning county began to consider and explore the way to solve the rural social problems fundamentally in 2008.
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