currents

currents的基本解释

n.

电流( current的名词复数 ), 水流, 流速

currents所属的单词分类

Ocean / 海洋 [142]

moray eel  ·  marine life  ·  manta ray  ·  humpback whale  ·  giant squid  ·  euphotic zone  ·  brittle star  ·  intertidal zone  ·  mako shark  ·  orca

与currents相关的网络例句 [注：此内容来源于网络，仅供参考]

The time-domain response of the induced currents on a scattering object irradiated by a plane wave with a Gaussian pulse in time is expanded as an associate Hermite series in this paper. Using the isomorphism of the associate Hermite function and its Fourier transform, the frequency-domain information can be obtained similarly to the time-domain expansion. According to the corresponding relation between time-domain analysis and frequency-domain analysis, and using the early-time response and the low-frequency information of the induced currents, the non-known coefficients in the expansion series can be decided. The entire responses of the induced currents on the scattering object in both time and frequency domains can be obtained at one time by simultaneous extrapolation computation using both the early-time response and the low-frequency information of the induced currents.

摘要首先根据散射体在高斯脉冲平面波激励下感应电流的能量几乎全部集中在时间轴和频率轴上的有限范围内，该文将时域响应展开为系数待定的连带Hermite级数的叠加，并根据连带Hermite函数的傅里叶变换的自反性，得到与时域响应形式类似的频域响应；然后利用时域方法和频域方法分别计算散射体上感应电流的早时响应和低频信息；最后经过时域和频域联合外推计算，由早时响应和低频信息确定时域和频域响应的待定系数，从而获得了整个时域和频域的完全响应。

These Thoughts so oppress'd my Mind, that I began to give over my Enterprize, and having haled my Boat into a little Creek on the Shore, I stept out, and sat me down upon a little rising bit of Ground, very pensive and anxious, between Fear and Desire about my Voyage; when as I was musing, I could perceive that the Tide was turn'd, and the Flood come on, upon which my going was for so many Hours impracticable; upon this presently it occurr'd to me, that I should go up to the highest Piece of Ground I could find, and observe, if I could, how the Sets of the Tide, or Currents lay, when the Flood came in, that I might judge whether if I was driven one way out, I might not expect to be driven another way home, with the same Rapidness of the Currents: This Thought was no sooner in my Head, but I cast my Eye upon a little Hill, which sufficiently over-look'd the Sea both ways, and from whence I had a clear view of the Currents, or Sets of the Tide, and which way I was to guide my self in my Return; here I found, that as the Current of the Ebb set out close by the South Point of the Island; so the Current of the Flood set in close by the Shore of the North Side, and that I had nothing to do but to keep to the North of the Island in my Return, and I should do well enough.

我思想压力很大，不得不考虑放弃原定的计划。我把小船拉进沿岸的一条小河里，自己迈步上岸，在一块小小的高地上坐下来沉思。我心情忧郁，心绪不宁。我害怕死，又想前去探个究竟。正当我沉思默想之际，只见潮流起了变化，潮水开始上涨。这样，我一时肯定走不成了。这时，我忽然想到，应该找一个最高的地方，上去观察一下潮水上涨时那两股急流的流向，从中我可以作出判断，万一我被一股急流冲入大海，是否有可能被另一股急流冲回来。我刚想到这一层，就看见附近有一座小山；从山上可以看到左右两边的海面，并对两股急流的流向可以一目了然，从而可以确定我回来时应走哪一个方向。到了山上，我发现那退潮的急流是沿着小岛的南部往外流的，而那涨潮的急流是沿着小岛的北部往里流的。这样，我回来时，小舟只要沿着北部行驶，自然就可以被涨潮的急流带回来。

The foundation of this system provides a good reference to promote the standardization and intelligence of the overhaul and maintenance of vacuum switches. This paper develops a special HF pulse power supply for internal pressure estimation, which achieves the output of HF-HV sinusoidal pulse wave whose frequency and amplitude can be modified respectively, and meets the design requirements according to the results of Simulink simulation and practical experiments. With the help of AT89S52, this paper designs an I~2C serial bus based signal detection system for peak value signal acquisition of HF pulse currents, which communicates with the upper computer by asynchronous serial communication for uploading the data. In the upper computer, a human computer interface is developed by Matlab software, whose functions are to do some computation and graphic display, such as calibrating the relation curve of vacuum degree and peak value of HF pulse currents, vacuum degree computation, and vacuum lifetime evaluation analysis basing on grey forecasting model as well as making relative suggestions.

本文研制了用于真空度检测的高频脉冲电源，通过Simulink仿真和试验检验其满足设计要求，实现了电压幅值和频率独立可调的正弦波高频高压脉冲输出；利用以AT89S52为核心基于I~2C串行总线的信号检测系统实现高频脉冲电流峰值信号的采集，通过异步串行通信实现单片机与计算机之间的数据通信，将检测数据传至上位机；在上位机利用Matlab开发人机交互界面，实现相关数据处理和图形显示，包括真空度——高频脉冲电流峰值关系曲线标定、真空度数值计算、基于灰色预测模型的真空寿命评估分析和提出相应决策建议。

与currents相关的网络解释 [注：此内容来源于网络，仅供参考]

currents：洋流

开始讲洋流(currents)有三种:水平,上升和下降. 主要讲上升洋流(upwelling current)的成因是季风(prevail),季风的形成是因为海洋与陆地上空的气压不同(有题),导致空气由海洋吹向陆地,而季风带动海洋表面的海水,将海水吹向海岸(有题),海水碰触到海岸后会转向沿着岸际向北或...

currents：流

开始讲洋流(currents)有三种:水平,上升和下降. 主要讲上升洋流(upwelling current)的成因是季风(prevail),季风的形成是因为海洋与陆地上空的气压不同(有题),导致空气由海洋吹向陆地,而季风带动海洋表面的海水,将海水吹向海岸(有题),海水碰触到海岸后会转向沿着岸际向北或...

currents：潮流

2-地球的屋顶 Among the Rafters Of the Earth | 3-潮流 Currents | 4-山谷之下 Under Mountain and Valley

currents：水流

谐波:Harmonic Currents | 水流:currents | 潮流:tidal currents

Ocean Currents：海流

这些周期性活动包括太阳光照射的 强度、地球运行轨道的偏离、火山爆发和海流 (Ocean Currents) 的变化等等. 事实上从南极 Vostok 实验站所做的冰柱分析,也可以证明过去40万年至1950年南极的二氧化碳浓度和相对温度 (相对於现在的南极表面温度) 的周期性变化 (图2).