Guangzhou Ionospheric Observatory is located near the geomagnetic equator ( geomagnetic coordinate 183.0 ° E, 11.5 ° N).

We verify the correctness of selecting GPS latitude and longitude as the characteristics through the center clustering by SAS software.

并通过SAS软件运行中心聚类算法验证了选取GPS经纬度作为特征量的正确性。

互联网摘选

A method of determing the ionospheric delay with the two-way satellite dual-frequency ( C band) observation is introduced, and the results from the observations for different longitudes and latitudes are analysed and compared to each other.

介绍了利用卫星双向双频（C波段）观测来测定电离层时延的方法，并对不同经纬度的观测结果进行了比较和分析。

互联网摘选

The real-time traffic information collection method based on GPS is studied. Two segment average speed estimation algorithms are proposed based on the longitude, latitude and speed data collected by GPS receiver.

对基于GPS的实时交通信息采集方法开展研究，分别提出了利用GPS返回的经纬度数据和速度数据的两种路段平均速度估计算法。

互联网摘选

Achieve acquisition of Land latitude and longitude location information, land area and distance measurement, this system content online data communication functions and GIS positioning data processing. 2.

实现了土地经纬度位置信息的采集，土地面积和距离的快速测量，系统具备数据联机通讯功能及定位数据的GIS处理。

互联网摘选

Technically, Magnus is interested in location latitude and longitude, the user account ID, timestamps, and the relationships between these particular data.

从技术上讲，Magnus关注位置经纬度、用户帐户ID、时间戳和这些特定数据之间的关系。

互联网摘选

He named many young American writers at the time who he said were working without fear of the critic.

他列出他认为在当时不受外界批评影响的多名年轻美国作家，他们写作忠于自己并充满热情。

互联网摘选

In this paper, the pricing of American option in infinite time and optimal expiration time are given.

该文给出了无限期美式期权的定价公式以及最优实施期。

互联网摘选

Hedging and Stopping-time Analysis About an American Option with Discrete time

离散时间美式期权套期及停时分析

互联网摘选

He was the first African American to become "Time" Magazine's Man of the Year.

他是成为《时代周刊》年度风云人物的第一位非洲裔美国人。

互联网摘选

History experts say that many American settlements at that time were named after ancient cities.

史学家说，当时美国许多地方都以古城命名。

互联网摘选

Dad: But I was watching American Idol at that time.

爸爸：但是那个时候我在看美国偶像啊。

互联网摘选

A third area involves the American's concept of time.

第三个方面是美国人的时间观念。

互联网摘选

It was the most popular American book of its time.

这是当时最受欢迎的美国的书。

中考真题- 2015 南京 任务型阅读

The American problem this time has more in common, at least qualitatively, with the Japanese post-bubble problem, where the issue was not reassuring foreigners but maintaining sufficient domestic demand to push the economy forward.

美国这次的问题，至少在定性方面与日本的后泡沫经济问题更有共同点，日本的问题不是恢复外国人的信心，而是维持足够的国内需求以推动经济向前。

互联网摘选

With the deepening of Sino-US exchanges and cooperation, the traditional Chinese view of time is awakening. At the same time, the traditional American concept of time is gradually challenged by many other cultures.

随着中美交流与合作的不断加深，中国文化传统时间观正在被改变，美国文化的传统时间观也渐渐受到其他文化时间观的影响。

互联网摘选

The American attitude toward time is not ( 43) necessarily shared by others, especially non-Europeans.

美国人对待时间的态度未必适用于每个人，尤其不适用非欧洲人。

互联网摘选

Why do American fathers have time?

为什么美国父亲都有时间？

provided by jukuu

What's odd is, you were an American the last time you were here.

不寻常的是你上次来时还是个美国人

互联网摘选

According to the American Time Use Survey, women in dual-earner couples are three times more likely to report interrupted sleep if they have a child under the age of 1, and stay-at-home mothers are six times as likely to get up with their children as are stay-at-home fathers.

《美国人时间使用调查》显示，在有一岁以下孩子的双职工家庭里，女性睡眠被打断的几率是男性的三倍；而全职妈妈起床照看孩子的几率是全职爸爸的六倍。

互联网摘选

Or look at it this way: According to the American Time Use Survey, the average married, employed father who has children under age 6 spends just 2.4 minutes per day reading to them--which is less time than the average email user spends deleting emails.

或许，我们可以换个角度来看：据“美国人时间使用情况调查”（American Time Use Survey）显示，孩子不满六岁的已婚在职父亲每天给孩子读书的时间平均仅有2.4分钟，还不到普通电子邮件用户用于删除电子邮件的时间。

互联网摘选