给出一种测量地磁的新方法,解释了实验中出现的双射频子吸收现象。
An improved method is introduced, through which terrestrial magnetism can be measured and the absorbed phenomenon of double-radiation oscillator emerging in experiments is illustrated.
沈括发现,指南针并不是真正的指向北方,而是指向地磁的北极,这对指南针用于导航走出了决定性的一步。
Kuo discovered that compasses do not point true north but to the magnetic North Pole. This was a decisive step to make them useful for navigation.
地磁活动是地球磁场的自然变化,其波动周期为11年。
Geomagnetic activity, the natural variations in Earth's magnetic field, it fluctuates in 11-year cycles.
引起极光的太阳能量抛射还能引起地磁风暴,能够影响宇航员的太空行走,绕地卫星甚至是地面上的通信和电力系统。
The solar ejections that cause auroras can also create geomagnetic storms that can affect spacewalking astronauts, Earth-orbiting satellites, and even communications and power systems on the ground.
此外,由太阳活动引起的“地磁风暴”,确实可以破坏一些无线电通信,危害卫星,甚至瘫痪电力系统。
Additionally, it's also true that geomagnetic "storms" caused by solar activity can disrupt some radio communications, endanger satellites and even knock out power systems.
由其引发的太阳风暴可能会激发地磁场风暴,届时,全球电网瘫痪,时间将长达数小时,数天,甚至几个月,大量的生产生活将无法继续进行。
The resulting solar storm could cause a geomagnetic storm on Earth, knocking out electricity grids around the world for hours, days, or even months, bringing much of normal life grinding to a halt.
当岩浆从中海脊下涌起的时候,岩浆中的磁铁矿物质按地磁场的方向被磁化。
As magma rises under the mid-ocean ridge, ferromagnetic minerals in the magma become magnetized in the direction of the magma become magnetized in the direction of the geomagnetic field.
这张惊人的极光图片在一场极有可能由2010年5月24日来自太阳的日冕物质抛射引起的地磁风暴期间拍摄的。
This striking aurora image was taken during a geomagnetic storm that was most likely caused by a coronal mass ejection from the Sun on May 24, 2010.
在无限和真空的空间中,地磁场在强度上随距离3次方而衰减。
In a infinite and empty space the geomagnetic field falls off in strength with the third power of distance.
NASA宣称更多的地磁暴发生在春秋两季,在这段时间内,是观察北极光或南极光的绝佳时机(如果你足够幸运的处于一个能够观察到它们的地区!)
NASA says that more geomagnetic storms occur in the fall and spring, and this is a great time for viewing the aurora borealis or australis (if you're lucky enough to be in an area where it's visible!)
但BigMemory还是要比底层可用的存储快很多,不论是本地磁盘、网络存储,还是RDBMS等原本记录数据的系统。
It is however, much faster than the next available tier of storage (be it local disk, network store, or going back to the original system of record - such as an RDBMS - for the data).
它既支持本地磁盘缓存,也支持内存中的缓存。
It supports both local disk caching as well as caching in memory.
工作区是本地磁盘上的一组目录,因此可以将那些文件保存在一起,作为该版本的文件集。
The workspace is a set of directories on your local disk, so you can just keep those files together as the set of files for the version.
该脚本之所以要花费那么多时间,是因为它实际上要将整个二进制文件的副本导出到本地磁盘,以进行比较。
The script takes so much time because it actually involves exporting a full copy of the binary to the local disk for comparison.
这些瘦客户机可以是低成本的设备,只具有很有限的计算能力,没有本地磁盘存储。
These thin clients, as they are known, can be low cost devices with little computing power and no local disk storage.
应用程序应该不需要知道它们访问的是本地磁盘上的文件还是远程磁盘上的文件,也不需要知道它们正在打印到本地打印机还是远程打印机。
Applications should not need to know whether they are accessing a file on a local disk or a remote one or whether they are printing to an attached or remote printer.
价格不是很高;如果与使用您自己的NAS或SAN或本地磁盘的成本相比的话,S3的价格是非常合理的。
It's not too expensive; when compared to the costs of keeping your own NAS or SAN or local disks, S3 is quite reasonable.
不能使用本地磁盘或划分为逻辑卷的磁盘作为共用分页空间设备。
You cannot use local disks or disks that have been partitioned into logical volumes as common paging space devices.
它会通过使陨石和彗星偏离而保护地磁圈,这会有效地减少进入地球的伽马射线。
It will defend the earth's magnetosphere by deflecting meteorites and comets, it will lessen the effects of gamma rays into the Earth's atmosphere.
在这种模式下,写操作是在数据存储到本地磁盘并镜像到对等节点内存后被确认的。
In this mode, the Write operation is acknowledged after the data is stored on the local disk and mirrored to the peer node's memory.
当然,有些事实证据是有效的,比如玛雅人的确有一个长记历的历法,地磁反转理论也的确存在,太阳活动的确在减弱等等。
Certainly, some of the facts at hand are valid; for example, the Maya did have a Long Count calendar, pole-shift theory does exist, and solar activity does wax and wane.
实际上,我用得还相当上手,我会做一些关键的系统改进,比如电脑启动时自动加载本地磁盘,创建页面文件,改变GRUB的启动菜单等。
In fact, I was working flawlessly at the terminal, did critical system modifications such as auto-mounting local hard drives on start-up, creating a Pagefile, and changing the GRUB boot menu.
如果只需要查询本地磁盘上的XML文档(也是本文的重点),连接的设置非常简单。
When you're just querying XML documents on a local disk (which is what this article focuses on), setting up a connection is pretty straightforward.
这种方法能探测到脑细胞电活动发出的磁信号——一种信号的强度只相当于地磁场的一万亿分之一。
It detects magnetic signals that are produced by the electrical activity of brain cells—and which have about a billionth of the strength of the Earth's magnetic field.
默认情况下,执行文件共享的许可与把文件从文件共享复制到本地磁盘的许可不同。
By default executables on a file share had different permissions than executables that were copied from the file share to the local disk.
斯特芬•茅斯:科学家们采用非常灵敏的磁力计来测量地磁场的方向、强度及方位。
Stefan Maus: They're equipped with very sensitive magnetometers that measure the direction and strength of the magnetic field and that altitude.
大多数系统甚至允许您在NFS安装的文件系统上使用交换文件,当您没有本地磁盘空间可用时,就可以使用这样的文件系统。
Most systems even let you use swap files on NFS mounted filesystems, which can be used when you have no local disk space available.
DISK_NAME 可帮助识别有关的本地磁盘。
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转,地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past —sometimes the field completely flips, with the north and the south poles swapping places.
这种变化与地球磁场曾经发生过的变化相比还算温和的——有时地球磁场会完全翻转,地磁北极和地磁南极会对调。
These changes are mild compared to what Earth's magnetic field has done in the past —sometimes the field completely flips, with the north and the south poles swapping places.
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