三年级英语课文录音A New System of Compass Correction鼠目寸光是什么意思
怎么报名参加雅思
期刊名称： Journal of Navigation
keepcalm作者： G. N. Harvey
mac是什么意思年份： 1948年高中英语学习方法
保镖主题曲期号： 第3期
摘要：This paper is concerned with two different problems. The first of the is to correct a magnetic compass so that the esntial relationships for zero deviation are maintained even when the ship rolls and pitches. The Harvey-Raynes corrector is described and its advantages are explained. This corrector makes it possible to steady the compass at any time without affecting the accuracy of the existing deviation card. The cond problem considered is the automatic correction of deviation for transmitting magnetic compass. A system of 'point-by-point' correction is developed, bad upon the reprentation of the deviating force by a truncated Fourier ries; it is shown that such a truncated r
dramaticies may be reprented mathematically in a form immediately suitable for practical application, some such forms being described in detail.
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内容由中国教育图书进出口有限公司引进
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