气象上把从正东左右45度角以内吹来的风称为偏东风。风吹来的方向确定为风向，偏字表示风向围绕某个方位做小范围摆动。
在偏东风的影响下，菲律宾吕宋上空出现焚风效应。
Under the influence of easterly winds, fohn effect appeared over Luzon, the Philippines.
傍晚有东北偏东风，晚上至半夜转成北风 下午为东北偏东风，夜间至午夜转为北风。
Later in the afternoon the wind backed ENE'ly and, during the evening, continued to back to be N'ly by midnight.
季风强盛阶段低平流层东风逐渐下传，对流层高层至低平流层风速增大，风向基本转成偏东风。
During the powerful and prosperous period of monsoon, the wind speed increased and the wind was east wind by and large from the higher level of the troposphere to low stratosphere.
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