与周边空气相比，轮船轨迹含有更多微粒。水蒸气围绕着这些作为核子的微粒凝结。
Compared to surrounding air, ship exhaust has more particles, and each particle can act as a nucleus around which water vapor condenses.
你们可以看到,有件事非常值得注意,可以注意到,方向的速度，is，that，the，velocity，in，the，x，direction,在整个轨迹当中-,如果没有空气阻力，也没有摩擦力-,是不会改变的。
Now, when you look at this there is something quite remarkable and the remarkable thing x - throughout this whole trajectory-- if there is no air draft, - if there is no friction-- is not changing.
在某种程度上更为可靠的雷达观测无法区别大气中的人造飞船、流星轨迹、电离的空气、雨滴和热断层。
Radar sightings, while in certain respects more reliable, fail to discriminate between artificial objects and meteor trails, ionized gas, rain, or thermal discontinuities in the atmosphere.
拉力是一种物体在空气中所受到的阻力，它能产生与球运行方向相反的作用力，减缓球的运行速度，而升力则是一种能使物体偏离直线运行轨迹的力。
Drag is the force of air resistance pushing against a ball's motion and slowing it down, while lift is a force causing a ball to swerve off a straight path.
具有讽刺意味的是，这种失去旋转的球，由于受到空气动力学方面的影响，会使球从正常的轨迹中发生偏离。
Ironically, that lack of spin on the ball causes its path to curve because of aerodynamics.
火焰龙卷风，也被称作“火旋风”，非常罕见。发生时火焰直线上升，如同龙卷风中空气的运行轨迹。
Fire tornadoes, also known as "fire whirls", only occur under certain conditions and form a vertical column of flames and hot air that behaves much like a normal tornado.
主要考虑了摩擦力、空气阻力等因素对弹丸的速度和轨迹的影响。
The effects of frication, air frication on the speed and trajectory of projectiles have been fully considered.
风雨在空中的漂移和空气中不均匀介质的存在使闪电的轨迹呈不规则曲线形。
The drift of wind and rain in the air and the existence of inhomogeneous medium make the locus of lightning behaving as irregular curve.
通过对空气流场、过冷水滴运动轨迹的计算和能量方程的求解，得到了多种状态下的风速管表面温度。
Based on the calculation of aerodynamic flow field, overcooled water droplets trajectories and energy equation, surface temperatures of the anemometer under various conditions were obtained.
这两个附加点的轨迹使防震系统更为自由，并且使杠杆比率更为复杂，对于空气冲击的使用也得以优化。
The trajectory of these two attachment points adds a degree of freedom to the shock mounting system and creates a more complex leverage ratio, one that is optimized for use with an air shock.
从铁饼在空气中飞行所受到的气动力出发，阐述铁饼飞行的轨迹和铁饼出手时的速度、角度、自转角速度和风作用对成绩的影响。
The path of discus flight and the effects of the throw velocity/angle, spin and wind conditions on discus flight are discussed in this paper, considering the aerodynamic force on the discus.
二维网格线作为轨迹在空气中扩散和膨胀，形成了用最小的轻质材料创造的庞大空间。
A 2d network of lines as a footprint inflates and expands in the air, resulting in a voluminous space created with minimal lightweight material.
空气弹射巧妙地将空气压力和水流反冲技术结合起来，把参与者按照预先计算好的抛物线轨迹抛到空中。
AirKick works propelling participants through the air in a pre-calculated parabolic trajectory using a special combination of air pressure and water recoil technology.
空气弹射巧妙地将空气压力和水流反冲技术结合起来，把参与者按照预先计算好的抛物线轨迹抛到空中。
AirKick works propelling participants through the air in a pre-calculated parabolic trajectory using a special combination of air pressure and water recoil technology.
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