Longitudinal or seif dunes are dunes that are parallel to a strong wind that blows in one general direction.
纵向或者赛夫沙丘是与强风平行的沙丘，风总是以相同方向刮过。
Shifting of dune had horizontal direction (ne SW) and longitudinal direction (NW SE) and irregular formation formed with varied wind direction.
沙丘走向有横向(NE -SW)和纵向(NW -SE)以及多风向形成的不规则形。
Feasibility is discussed that a multi-longitudinal mode laser is employed as the detection light source of the double-edge technique for Doppler lidar wind measurement.
讨论采用多纵模激光器作探测光源用于双边缘多普勒激光雷达测风的可行性。
Since a long period, only wind load and longitudinal braking force are taken into account in the design of steel bracing system of single storey buildings.
单层房屋钢支撑体系的设计，长期以来只考虑风力和吊车制动力。
For the traditional calculation model of wind column, the top is fixed hinge. It means that the longitudinal stiffness of workshop is infinite.
传统的抗风柱计算模型为上端不动铰，即认为厂房纵向刚度为无穷大。
For the traditional calculation model of wind column, the top is fixed hinge. It means that the longitudinal stiffness of workshop is infinite.
传统的抗风柱计算模型为上端不动铰，即认为厂房纵向刚度为无穷大。
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