查询词典 polar cap

What's missing here, of course, is the North Polar ice cap.

这里少了什么呢，当然，是北极的冰盖。

Since 1979, the size of the summer polar ice cap has shrunk more than 20 percent.

自1979年以来，夏天极地冰冠缩小的规模达20%以上。

The size of the North Polar Ice Cap in the month of September is

北极冰盖在9月份的大小

A portion of the Martian South Polar Cap, showing stratified layers exposed by a long process of sublimation.

在火星的南极第一部分，显示了一个漫长的过程升华暴露分层层。

A polar ice cap, or polar ice sheet, is a high-latitude region of a planet or moon that is covered in ice.

极地冰盖，或称极地冰原，指的是为冰层所覆盖的地球或是月球的高纬度地区。

The deviation of geomagnetic and rotation axes of the earth is considered in the calculation. Except the dynamo effect induced by the neutral wind, the driving electric field across the polar cap and the region 2 fieldaligned current, caused by the magnetospheric coupling, are also taken into account.

计算中考虑了地磁和地理坐标间的偏离；除中性风场感生的发电机效应外，还包含了磁层耦合(极盖区边界的晨昏电场和二区场向电流)的驱动外源。

Early morning clouds can be seen along the left limb of the planet, and a large cyclonic storm composed of water ice is churning near the polar cap.

这类气旋可能是衍生自火星上不稳的锋面系统，再通过强烈的温差效应帮助而形成。

The reconnection voltage is approximately fitted by sin~(3/2)θ_(IMF/2 for its response toθ_.The ionospheric transpolar potential and the voltage along the polar cap boundary show different depondencies from that of the reconnection voltage,so it is not justified to take them as substitutes for the reconnection voltage in measuring the total reconnection rate.

2重联电压与θ_之间近似满足sinθ_(IMF/2~(3/2)关系；电离层的越级电位和极盖区边界上的电压随sinθ_(IMF/2~(3/2)的变化呈现不同的规律，一般不能简单用它们取代重联电压来量度总重联率。

It is found that in both the polar cap and the auroral zone a F1 like peak of ionization appeared at 190km height during the main and recovery phases of the storm; while the normal F2 peak disappeared and great depletions of electron density occurred.

发现在磁暴主相和恢复相初期，极光椭圆和极盖区电离层都在大约 1 90km高度出现类似F1的峰，F2主峰完全消失，F区电子密度大幅度下降。

With coordinated EISCAT and ESR radar data, ionospheric storm in both the dayside polar cap and the auroral oval during the major magnetic storm of May 15, 1997 is studied, focusing on the F region negative storm.

联合利用EISCAT和E Svalbard非相干散射雷达数据，研究 1 997年 5月强磁暴期间向阳侧极盖与极光椭圆区电离层F区负暴。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。