The low level shear system, which is composed of the southward downdraft branch of upper level northern jet and the ascend branch of low level jet, is the main synoptic system.
结果表明：向南运动的高层偏北风急流下沉支与低空急流上升支组成低涡切变系统是主要影响天气系统；水汽主要来源于孟加拉湾和南海，但东部海区水汽输送也不可忽视。
Short pier RC shear wall structure system with concealed bracings was put forward.
提出了钢筋混凝土带暗支撑短肢剪力墙结构体系。
The global optimal design for the control system of frame shear structure with tendon control devices installed on the structure is conducted for the control systems.
应用本文的方法对剪切模型框架结构上安装的锚索控制器进行了控制器的总体优化设计。
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