1) Schneider's projection problem
Schneider投影问题
2) problems in submitting articles
投稿问题
4) projection problem
投射问题
1.
The projection problem for presupposition has been one of the most troublesome aspects in pragmatics.
投射问题一直是预设研究中比较棘手的一个方面。
5) investment
[英][ɪn'vestmənt] [美][ɪn'vɛstmənt]
投资问题
1.
According to the investigation of basic education investment in Jianping, Liaoning, we can find that current rural basic education investment system in which the local government plays as the main body of the investment, especially in poor areas, is better than the previous system in providing rural basic education investment funds and lightening the farmers burden.
通过对辽宁省建平县基础教育投资问题的调研发现,一直以来,县乡两级政府作为农村基础教育尤其是贫困地区基础教育投资主体的现行农村基础教育投资体制,在县这一级更大的行政区域内调度教育资源,较原来的制度有利于提供农村基础教育资金,减轻农民的负担。
6) the problem of casting
投掷问题
1.
This paper is a report of an empirical study on senior middle school students understanding about classical probability through a test on the problem of casting, which appears before the birth of theory of probability, and on the problem of points, which gave rise to the birth of the theory of probability.
本研究主要针对概率论诞生前古代机会游戏中的“投掷问题”和导致概率论诞生的“点数问题”,对高中生进行了测试和访谈,以了解他们对古典概率的理解情况。
补充资料:滤波反投影或卷积反投影
滤波反投影或卷积反投影
影像学术语。当代影像学设备进行影像重建的数学方法。在直接用扫描后所获得的投影轨迹剖面图反投影重建出的CT图像中,无法避免角度卷入条纹伪影(angular aliasing streaks)造成的模糊和失真。这种现象与被扫描层面的空间频率中高频信息的损失有关。使用一种精密的数学方法去除这种模糊。称为“展现”(unfolding)或去卷积(deconvolution),即在反投影前使用一种数学的“滤器”或卷积函数对原始数据进行修正,然后再进行反投影。两步数学处理过程合称为滤波(修正后)反投影或卷积(后)反投影。这种方法的优点是处理过程简单,速度快,所得图像逼真、清晰。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条