低空

词组短语

low level · low altitude

与低空相关的网络例句 [注：此内容来源于网络，仅供参考]

And the southwest low level jet and southeast low level jet provide it strong warm advection and vapor transport.

低空有西南和东南风急流为其提供强的暖平流和水汽通道。

Therefore, the moist potential vorticity analysis associated with the mesoscale convective system was researched in the paper, so as to reveal the moist potential characteristics of mesoscale convective system in typhoon circulation. The results showed that, during the generation stage, convective instability characterized by MPV1 was a favorable condition for forming MCS, while the vorticity which was caused by the slantwise isentropic surface and the vertical shear of the horizontal wind characterized by MPV2 was an inspiring mechanism. The specific process was that, the atmosphere exhibited the feature of strong convective instability at the low level of convection areas and the southeast areas, which included plenty of erratic energy. The slantwise ascended the stream transfer the erratic energy to northwest, where the stratification stability was small. As decreased, the cyclonic vorticity increased. On the other hand, the vorticity caused by the slantwise isentropic surface and the vertical shear of the horizontal wind inspired the release of convective instability and as a result that the MCS formed. During the development stage, the cyclonic vorticity increased quickly with the persistent decreasing of . Meanwhile, the inclination of isentropic linewas bigger than the absolute momentum line at middle level, which exhibited the feature of conditional symmetric instability , then the conditional symmetric instability was forced to release by the vorticity resulted from the slantwise isentropic surface and the vertical shear of horizontal wind, and the MCS developed.

结果表明，在对流形成阶段，MPV1即对流不稳定为MCS的形成提供背景不稳定条件，由MPV2即湿等熵面的倾斜和水平风的垂直切变而引起的涡旋发展作为强迫机制：MCS形成的区域及东南区域中低层是强对流不稳定层，蕴含丰富的不稳定能量，倾斜上升运动把对流不稳定区具有强不稳定能量的暖湿空气向西北中层的中性层结区输送，由于的减小，气旋性涡度增强，有利于形成对流，另一方面，由于湿等熵面倾斜和低空急流加强而引起的涡旋发展作为一种强迫机制激发对流不稳定能量得到释放，从而形成对流；在对流系统地发展阶段，由于低层的对流不稳定性进一步减弱，进一步减小，气旋性涡度进一步增强，有利于MCS的增强，中层等θe 线的倾斜度比绝对动量M 等值线的倾斜度大，对应有条件对称不稳定区域，满足条件对称不稳定条件，在湿等熵面倾斜和台风低空急流作用下引起的涡旋发展强迫对称不稳定能量释放，从而使得对流得以维持和加强。

The reason of this is that near the horizon we look through a very great thickness of the lower atmosphere, which is full of the larger dust particles reflecting white light, and this diluter the pure blue of the higher atmosphere seen beyond, And in the vicinity of the sun a good deal of the blue light is reflected back into space by the finer dust, thus giving a yellowish tinge to that which reaches us reflected chiefly from the coarse dust of the lower atmosphere.

这是因为我们向天边望去时，目光要穿过极厚的低空大气层，其中布满颗粒较大的尘埃，反射出白光，这就冲淡了天际高空大气层的纯蓝色。在太阳附近，大量蓝光则由细微的尘埃反射回太空。这样，主要由低空大气层的粗粒尘埃反射到地面的光线，便带有浅黄色。

The reasonof this is that near the horizon we look through a very great thickness of thelower atmosphere,which is full of the larger dust particles reflecting whitelight,and this diluter the pure blue of the higher atmosphere seen beyond,And inthe vicinity of the sun a good deal of the blue light is reflected back intospace by the finer dust,thus giving a yellowish tinge to that which reaches usreflected chiefly from the coarse dust of the lower atmosphere.

这是因为我们向天边望去时，目光要穿过极厚的低空大气层，其中布满颗粒较大的尘埃，反射出白光，这就冲淡了天际高空大气层的纯蓝色。在太阳附近，大量蓝光则由细微的尘埃反射回太空。这样，主要由低空大气层的粗粒尘埃反射到地面的光线，便带有浅黄色。

The rainband was located in the south of entrance of upper-level jet and in the north of low-level jet stream, which provide the good thermal and dynamical conditions.

长江中下游地区处于高空急流入口区右侧和低空急流左侧，高低空急流的这种有利配置为暴雨的产生提供了有利的动力热力条件。

All these are the trigger mechanism of the severe convection and the squall line weather process. The strong instability of low level, the outbreak of low level jet and the core of the LLJ moving southeastward quickly, convective available potential energy and vertical helicity high center are indicative to the strong convection weather.

强对流发生时，该地区出现的低空增温增湿、低空急流的爆发及低层急流核向东南快传、高空急流轴稳定在强对流天气发生地上空，对流有效位能积累和释放随时间的演变过程及垂直螺旋度大值中心等都对此次强对流天气过程有很好的指示意义。

It was a typical South China quasi-stationary precipitation which was associated with the stationary front, low-level wind shear and low-level jet.

这是建立在静止锋、低空切变线和低空急流等系统基础上的一次典型的华南准静止锋降水。

It is also revealed that in the vicinity of heavy rain, the diagnostic fields such as vorticity and divergence at low levels was coordinated to that at high levels of atmosphere, contributing to the sustaining strong updraft, one of the favorable conditions for occurrence and persistence of the rain.

通过对这次过程中的物理量场的特征分析和能量场的分析发现，在暴雨区附近，涡度、散度等物理量场的高低空配置，有利于维持较强的垂直速度，对暴雨的产生和维持有利：低空急流的存在为暴雨提供了充沛的水汽条件；暴雨区维持的一个高能、饱和、潜在不稳定的环境为暴雨的产生提供了不稳定的能量条件。

In the article, we analysised the rainstorm process using conventional information, encryption data, strength ,speed and wind profile data of Doppler radar, discussed the atmospheric circulation system in the westing process of the subtropical high; revealed the different reasons caused two heavy precipitation (more than 10 mm per hour) and the possibility of small and medium-scale system existed, displayed the vertical distribution of the wind field over the stations in the rainstorm process and the close relationship between the transmission., strengthen of the level air-jet and the heavy precipitation, and then proved that the heavy precipitation was caused by the transmission and strengthen of the low-level jet.

利用常规资料，加密观测资料，多普勒雷达强度、速度和风廓线资料等对本过程进行周密细致的分析。探讨了在副热带高压西进过程中与之相配合的大气环流形势和影响系统；揭示了造成两次强降水（1小时大于10 mm以上）的不同原因和中小尺度系统存在的可能性；展示了暴雨过程中测站上空垂直风场的分布特点以及风廓线高低空急流下传和加强与强降水的密切关系，证明了强降水的产生主要由低空急流的下传和加强引起的。

Then, inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles and quaternary ammonium salts are studied from microscope through quantum chemistry calculation, and according to the results, theory predicting and proof testing of a benzene nitrile (2-benzo butyl nitrile) are made.

利用Hansch关系的研究结果表明，苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀效率，可用苯腈类化合物氰基氮原子的净电荷密度和分子最高占据轨道能量或分子最低空轨道能量构成的表达式表达。量子化学计算研究结果表明：1、苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀机理可能是：苯腈类化合物分子以其氰基氮原子上的电子提供给铁的3d空轨道，形成配位键；同时铁的3d轨道上的电子提供给苯腈类化合物分子的能量最低空轨道，形成&反馈键&。

与低空相关的网络解释 [注：此内容来源于网络，仅供参考]

low airburst：低空爆炸;低空氣爆

louver screen 百葉箱 | low airburst 低空爆炸;低空氣爆 | low-airspeed sensing and indicating equipment (LASSIE) 低速感測指示器

back-up valve：升压阀[在低的环境温度下,为了降低空冷式冷凝器的能力,以维护一定排气压力的设施]

back-up 备用品[零件,设备] ;支持[撑] | back-up valve 升压阀[在低的环境温度下,为了降低空冷式冷凝器的能力,以维护一定排气压力的设施] | back valve 单向阀,止回阀

fly by：(一架或几架飞机)在低空飞过指定地点,飞越;宇宙飞船飞近天体

fallsintosa rut陷入陈规,落入俗套 | fly by (一架或几架飞机)在低空飞过指定地点,飞越;宇宙飞船飞近天体 | fool around闲荡,干蠢事(或无用,琐碎的事)

low flying fish：低空飞行的鱼

caution 警告 | low flying fish 低空飞行的鱼 | fishy 奇怪的/可疑的

flyover：立体交叉;飞机编队低空飞行

flyout 飞出 | flyover 立体交叉;飞机编队低空飞行 | flysch facies 复理石相

low-level ozone：低空臭氧

lowland area 低地区 | low-level ozone 低空臭氧 | low-level waste 低水平放射性废物; 低放射性废物

hedgehop：极低空飞行

hedge树篱 | hedgehop极低空飞行 | hedging套头措施

strafing：低空扫射

低空扫射 strafe | 低空扫射 strafing | 直轴式起落架 straight axle landing gear

ground strafing：低空轰炸或扫射

ground storey ==> 地被层 | ground strafing ==> 低空轰炸或扫射 | ground straight- shank twist drill ==> 磨制直柄麻花钻

low altitude forward obliques：低空向前倾斜

low altitude 低空 | low altitude forward obliques 低空向前倾斜 | low birth thicket 矮灌丛