降雪标志了一个锋面的到来,一个高压区似乎正在进入本地。
The snow signalled the arrival of a front, and a high-pressure area seemed to be settling in.
在这个锋面,谨以巴西和美国对阵。
天气的锋面和锋面气旋密切相关。
沿锋面前进,形成了一条确定线的风暴。
A squall advancing along a front that forms a definite line.
结果表明:前汛期的锋面兼有温度和湿度梯度;
The front of the pre-flood season has the gradients of temperature and humidity at the same time.
锋面雷雨过境,上升下降气流达40海里每秒。
Frontal thunderstorm over the field, up and down drafts up to40 knots.
同时还利用浮标测流结果分析了锋面波动中的流态。
The variation of current at the frontal wave is analysed on the basis of the results of the mooring data.
结果表明:1降水过程由锋前暖区和锋面降水组成。
The conclusions are as follows. 1 The rain event consists of convective and frontal precipitation.
切变锋是河口湾锋系中最为常见和最易观察到的锋面类型。
Shear fronts are the most easily and frequently observed class of estuary fronts.
水平速度场在沿锋面移动方向表现出明显的辐合(散)特征。
The horizontal velocity field along the direction of front movement displays the characteristics of typical convergence pattern.
法向冻胀力则是在冻结锋面上冻胀应力沿基础影响范围之内的积分。
The normal frost heave force is an integral of soil frost heave stress at the freezing front along the range effected by a foundation.
扰动成长的主要机制是斜压不稳定,锋面弯曲的主要能源是平均有效位能。
The baroclinic instability is the predominant mechanism for the growth of disturbances, and the mean available potential energy is the main energy source for the frontal meanders.
泌阳凹陷的油气田呈环带状分布于沉积水与渗入水锋面位置的压力平衡带上。
Oil and gas reservoirs in Biyang depression distribute in circularity in the pressure equilibrium zone on the frontal surface between sedimentary water and infiltration water.
分析火焰数字图像,讨论了火焰锋面位置、火焰面积、平均灰度的计算方法。
The edge position, visible area and the mean of gray value of flame also be discussed by analyzing the flame images.
本文运用简化的坐标POM模式研究了东海黑潮锋面弯曲的产生与成长机制。
Using the -coordinate POM model, the effects of variation for flow core position and flux on Kuroshio frontal meander are studied.
在云南存在锋面附近的雨雪天气和造成重霜冻的晴好天气两种寒潮天气过程。
Meantime there are two kinds of weather of the cold wave, one of them is expressed as rainy or snowy day near the front, another is successive clear days result in severe frost hazard.
用该公式计算华南前汛期锋面云系自然降水效率,并探讨人工播云的可能性。
The formula was used to calculate the precipitation efficiency and the precipitation stimulation possibility of frontal clouds du-ring the first rainy season in South China.
因此,微重力环境下V型火焰锋面的不稳定性可能是声波与谐波相耦合的结果。
The conclusion points out that the ripples appeared in the laminar microgravity V flame are due to the effect of acoustic interaction coupling with the harmonic instability.
当低压波沿着锋面移动时,云量的增长和稳定的雨量都是可以被预测的,偶尔还发大水。
When waves of low-pressure move along the front, cloudiness increases and steady rains can be expected, occasionally with flooding.
该软件能有效地计算火焰前锋面积、已燃区体积和传热面积随火焰传播距离的变化情况。
It can calculate effectively the variation of flame front area, burned volume, and heat transfer area with the process of flame propagation and can be applied to an arbitrary combustion chamber.
锋面云系主要是层积云,由于在冷暖空气团中下沉逆温的作用,云系的厚度受到了限制。
The frontal cloud is mainly stratocumulus, with a limited depth as a result of the subsidence inversions in both air masses.
成因:我国降水量的这种时间变化特征,是与季风因锋面移动产生的雨带推移现象分不开的。
Causes: My precipitation characteristics of this time, and because of the monsoon front moving with the rain goes inseparable from the phenomenon.
在原始移动火焰锋面(MFF)模型的基础上,提出一种考虑碳粒表面还原反应的改进MFF模型。
On the basis of the origina1 Moving Flame Front (MFF) model, considering the surfacereduction of carbon particle, an improved MFF model is put forward.
分析指出,暴雨51%的雨量由锋前对流风暴单体形成,有35%的雨量为锋面云系前部的对流云产生。
The results showed that 51 per cent of storm rainfall was formed by prefrontal convective storm cell, convective cloud in the front of frontal cloud produced 35 per cent of rainfall.
当冷锋位于背风坡时,在暖区沿锋面上升的暖空气运动范围增大,可以出现沿锋面相间隔的多个上升区。
There are multiple vertical upwarding zones in the warm side when the cold front passages in the leeward side.
因此,最初引起兴趣大气波动系统和其他介质交界面所形成的波类似的东西不适宜作为进一步解释锋面的基础。
The initially attractive analogy between atmospheric wave systems and waves formed on interface of other media is, therefore, an insufficient-basis on which to develop explanations of frontal waves.
锋面南方存在深厚的位势不稳定区域,一旦有抬升运动产生,便很容易激发出强烈的对流运动,从而产生强降水。
A deep area of potential instability existing on the south of front, intense convective motion and heavy rainfall will be aroused in the case of uplift.
梅雨之后,天空会被对流云布满,以至经常发生午后雷雨,尽管如此,仍然会提供比沿锋面地点更好的看日食的机会。
Away from the mei-yu, skies are dotted with convective clouds that frequently grow into afternoon thunderstorms, though still offering better chances of seeing the eclipse than sites along the front.
梅雨之后,天空会被对流云布满,以至经常发生午后雷雨,尽管如此,仍然会提供比沿锋面地点更好的看日食的机会。
Away from the mei-yu, skies are dotted with convective clouds that frequently grow into afternoon thunderstorms, though still offering better chances of seeing the eclipse than sites along the front.
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