1) difference of longitude
经差
1.
Literature [1～4] gave three difference data on problem of the length for 1° difference of longitude in parallel of latitude on Mercator chart.
关于墨卡托海图上经差 1°的等纬圈弧长问题 ,在文献 [1～ 4 ]中 ,给出了 3种不同的结果 ,本文通过分析和计算 ,证明文献 [1]给出的结果是正确
2.
In the theory and practice of navigation, we often meet with the calculation of difference of latitude and difference of longitude.
介绍了两种常用的求经差的方法，即墨卡托航法和中分纬度航法。
2) economic voltage difference
经济压差
1.
The reactive power compensation design and operation method of ultra-high voltage(UHV) grids based on the economic voltage differences was introduced,and was proved to be practical,operable and scientific by an example.
介绍基于经济压差无功潮流的特高压电网无功补偿设计和运行方法,并举例说明这种方法的实用性、可操作性和科学性。
2.
Considering the hidden danger of the voltage stability failure in China power grid,a real-time monitoring and control method of the power system reactive power flow based on the economic voltage difference(△UJ) theory is discussed.
根据我国电网存在电压失稳的隐患,提出了一种基于经济压差(ΔUJ)无功功率优化潮流的电力系统无功功率实时监测与控制方法,以及逐步过渡到全网无功功率优化运行的实施措施。
3) compass error
罗经差
1.
The procedures and its analyses to determine compass error by GPS at sea;
海上利用GPS测定罗经差的方法与分析
2.
Calculation of celestial body azimuth with compass error by celestial observation based on CAD
基于CAD的天测罗经差天体方位计算
3.
It is complex to measure compass error by consulting the "Nautical Almanac".
利用《航海天文历》查表的方法来获得罗经差的计算过程比较复杂。
4) Traditional adjustment
经典平差
1.
It applies a supplementary method to the observation data process usually used by traditional adjustment.
它改变了在传统数据处理中采用经典平差方法的单一手段 ,为变形监测数据处理提供了更为科学的方法 ,计算结果进一步表明 ,该方法的合理运用 ,会更加符合核电工程建设实际 ,为工程建设提供更为切合实际的服务 。
5) compass deviation
罗经自差
1.
Possibility of correcting magnetic compass deviation while ship getting alongside the wharf;
船靠码头校正磁罗经自差
6) economic tolerance
经济公差
1.
Gives a brief introduction to the functions of the optical lens economic tolerance program.
简介了光学系统经济公差程序功能。
补充资料：差经
差经
差经 病证名。见《竹林女科证治》。亦名错经、蹉经、蹉缠、蹉理症、踵经。多因孕妇平素嗜食辛辣热物，积热内扰冲任，迫血妄行，以致经行时可兼见大小便中均有血出。治宜解热毒，调气血，方用分利五苓汤（猪苓、泽泻、白术、赤芍、阿胶、当归、川芎）。或认为差经为产后交肠病，参见该条。
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