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  chart
The typical frequency response function chart of the whole machine and its sanding parts, as well as its second-order mode charts of contacting roller, were obtained.
      
So if compounds and reactions are located on the metabolic chart according to their chemical features, the chart structure will acquire a periodic pattern.
      
So if compounds and reactions are located on the metabolic chart according to their chemical features, the chart structure will acquire a periodic pattern.
      
Modes of liquid-gas flow are described, and correlations are derived for the calculation of the limits and chart of flow modes.
      
A process chart of flame combustion of gases is suggested, and the region of existence of the normal (or standard) burning velocity Un is given.
      
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  nautical chart
Accurate, reliable, and up-to-date nautical chart information is more important today than at any time in the past.
      
A corrected reproduction of a small area of a nautical chart which is pasted to the chart for which it is issued.
      
A label on a nautical chart which indicates a relatively small, upright structure projecting above a building for the conveyance of smoke.
      
A label on a nautical chart which indicates a small dome-shaped tower or turret rising from a building.
      
A label on a nautical chart which indicates a pointed structure extending above a building.
      
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  sea chart
Tests with actual data of the Seasat SAR image and the sea chart of the southern North Sea showed that the models could simulate and detect the basic bathymetric features.
      
  chart system
From a series of various colour schemes differently constructed to characterize colour, the colour chart system DIN 6164 is tested here.
      
Reliability of a standardized reading chart system: variance component analysis, test-retest and inter-chart reliability
      
Evaluating reading acuity and speed in children with microstrabismic amblyopia using a standardized reading chart system
      
Control chart system with independent quality characteristics
      
This article proposes an algorithm to design a control chart system consisting of several individual control charts, each of which monitors one of s critical quality characteristics (dimensions) xi of a product.
      
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The information of the sea routes in areas around the Chinese NANSHA ISLANDis very scarce, especially around the BALAWANG Channel wbich has not beenprecisely surveyed over a long period. So that on the present charts there are manyareas prohibited to navigation, this always makes the navigators get scared. Inthe years of 1984 and 1985, the scientists of the Narihai Oceanographic Institute ofAcademia Sinica investigated twice the sea areas around NANSHA ISLAND andcarried out precise hydrographic surveying to...

The information of the sea routes in areas around the Chinese NANSHA ISLANDis very scarce, especially around the BALAWANG Channel wbich has not beenprecisely surveyed over a long period. So that on the present charts there are manyareas prohibited to navigation, this always makes the navigators get scared. Inthe years of 1984 and 1985, the scientists of the Narihai Oceanographic Institute ofAcademia Sinica investigated twice the sea areas around NANSHA ISLAND andcarried out precise hydrographic surveying to the hydrology, meteorology and depthof water along the sea routes. This paper describes in detail the experience of safe navigation of the researchship by making use of land marks, radar fixing and satellite navigation, as well as thematerial data of the sea routes. This paper also lists the information of air-tempera- ture. atmospheric pressure, stirface water temperature and surface current on thesea routes during the investigation.

中国南沙群岛周围海域航路资料少,尤其巴拉望水道长期未进行过精确测量,现有海图上航行禁区多,令航海人员生畏。一九八四年和一九八五年中国科学院南海海洋研究所航海科研人员两次考察了南沙群岛周围海域,对航路上的水文,气象和水深等进行了精确测量。本文详细介绍了考察船利用陆标,雷达和卫星导航装置安全航行的经验,以及航路实况,还列出了考察期间航路上的气温,气压、表层水温和表层海流的资料。

With reference to the "Theory of Celestial Divisions" of 《ZHOUBI MATHEMATICAL GUIDE》, this paper expounds the fundental principle of theancient star--sight fixing, and clarifies that 1 finger's width=2 ancient degrees= 1.9713degrees. Therefore, the lengths of the star--sight plates can be correctly calculatedand the largest one is found to be 0.723 Chi (foot) of the Ming Dynasty in length.Meanwhile, 40 star--sight records in the 《ZHENGHE CHART》and "Star--sightCharts" have been checked by modern method of celestial...

With reference to the "Theory of Celestial Divisions" of 《ZHOUBI MATHEMATICAL GUIDE》, this paper expounds the fundental principle of theancient star--sight fixing, and clarifies that 1 finger's width=2 ancient degrees= 1.9713degrees. Therefore, the lengths of the star--sight plates can be correctly calculatedand the largest one is found to be 0.723 Chi (foot) of the Ming Dynasty in length.Meanwhile, 40 star--sight records in the 《ZHENGHE CHART》and "Star--sightCharts" have been checked by modern method of celestial fixing, among which, 36records are selected and appended with concrete time and date (i. e. year, month,date and time). The author holds that the above elaboration will be valuable to thetextual research of Zhenghe's history of navigation.

本文根据《周髀算经》“周天历度”之说,论述了牵星术的基本原理。提出了1指=2古度=1°.9713;并计算出各牵星板的长度,大者为明尺7寸2分3厘。同时通过现代天文定位计算技术,验算了《郑和海图》和“过洋牵星图”中40处牵星记录,从中筛选出36处牵星的具体时间(年、月、日、时),对考证郑和航海史,具有一定的参考价值。

Chart is one of the basic means of navigation. The rapid scien-tific and technical development makes it possible to displayvarious lines, symbols, marks and data as well as ship's positionobtained by electronic position fixing device all on one screen--electronic navigation chart (ENC). A number of navgation chartdisplay systems started to be used on board small ships at the endof 70's. We are now trying to extend the range to the commercialvessels world--wide. To realize this, we have to solve the followingquestions...

Chart is one of the basic means of navigation. The rapid scien-tific and technical development makes it possible to displayvarious lines, symbols, marks and data as well as ship's positionobtained by electronic position fixing device all on one screen--electronic navigation chart (ENC). A number of navgation chartdisplay systems started to be used on board small ships at the endof 70's. We are now trying to extend the range to the commercialvessels world--wide. To realize this, we have to solve the followingquestions beforehand: 1) How to achieve the international unifica-tion, correctness and standardization of the information and datafrom waterway measurement and how to establish the efficient giobal communication and menory means to replace and input(lata;2) How to meet the performance requirements for the displayand information system of the elctronic navigation chart;3) Howto solve the legal problems caused by the use of ENC. This paper introduces the developing situation of the threequestions mentioned above and the development of the electronicnavigation chart and information system (ECDIS).

海图是船舶航行的最基本的工具之一,随着科学技术的发展,海图上的各种线条、符号、标志和数据以及电子定位设备测定的船位数据等都可以在电子屏幕上显示,即所谓“电子海图”(ENC)。从七十年代末起已有各种小型的航海图像显示装置在小型船上使用,现在要把使用范围扩大到全球性商船。为此须研究解决下列三个问题①如何解决水道测量资料和数据的国际统一、正确性和标准化以及如何建立全球性有效的修改更新以及输入通讯和储存手段,②电子海图显示和信息系统的性能要求,③解决因使用电子海图的法律方面的问题。本文介绍了上述三个问题的发展情况和“电子海图显示和信息系统”(ECDIS)的由来。

 
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