if the wind is to strong, it will blow some rape seeds out of the machine and cause some waste.
而风速过大,会造成菜籽随杂物一起排出机外,造成损失。It said the overall strength of storms measured by wind speed might increase two to eleven percent by the year twenty-one hundred.
它说,今年二十一几百风速测量风暴的整体实力可能会增加2%至11%。After sunset the air turbulence decrease the wind difference between different height also goes down, and keep steady.
日落湍流减弱,各层间的风速差异迅速增大,并趋于夜间时段的相对稳定。The setting up mode of wind force was advanced and let the wind velocity variable be introduced into the wind force model.
提出了风力的设置方式,将风速变量引入风力模型。Given wind speed, duration, and fetch, it is possible to predict the size of the waves generated by a given storm.
人给出了风速,它的持续时间和吹程,就有可能预报由某一风暴产生的海浪的高度。A rule says that the height of a wave (in meters) will usually be no more than one-tenth of the wind's speed (in kilometers).
规则表明,波浪的高度(以米为单位)一般小于风速(以公里为单位)的十分之一。In the Bohai Sea, the wind speed forecasted by mesoscale system model is usually lower than the real one.
在渤海,中尺度模式预报的风速通常比实际风速低得多。And it was seen from the wind tunnel tests that the wind pressure gradient had a nonlinear relationship with the wind velocity.
通过风洞试验发现,块石层内风压梯度与风速存在非线性关系,与速度的平方成正比;The trend could simply be part of a natural and long-term cycle that pushes wind speeds both up and down over the course of many decades.
这种趋势可能仅仅是自然的一部分和长期的循环,这种循环是在每经过数十年时间,风速会快-慢的循环一次。