In this paper, the target radiate characteristics and waveband selection of the infrared system reviewed briefly ; the suppression of the stray radiation in the infrared sub - system is discussed ; the material selection, the support structure and optimization of the primary mirror in the infrared sub - system of the theodolite, every factor which will affect the surface figure of the mirror is discussed in detail and get the result that in the circumstance of shooting range, the primary factor which affects the surface figure of the mirror in the infrared sub - system is temperature changing, this ca n be resolved by using material of low expansion coefficient and using same material in the mirror and the mirror seat
本文將對紅外系統的目標輻射特徵分析和波段選擇進行簡要回顧,討論紅外系統中雜散輻射的抑制,並詳盡分析經
緯儀紅外光學系統設計中所涉及到的反射鏡的材料、支撐、結構和優化設計等問題,認真討論和分析影響主鏡的面形精度的各種可能因素。並指出:在靶場環境下影響經
緯儀紅外分系統主鏡面形精度的主要原因是溫度的變化,這種情況可
通過選擇低線膨脹系數的材料並且使鏡座和反射鏡採用相同的材料予以解決。
In terms of routine, it includes teacher administration, education and instruction, position, praise & punishment and advanced studies, etc. in terms of staff, it includes headmaster, teacher in charge of a class, general state teacher and min - ban teacher, etc. this content not only reveal the historical outlook of the construction of laws and regulations on primary and middle school teachers, but also provides authoritative legislation foundation and guarantee for various period primary and middle school teachers work
中小學教師法規的內容涵蓋面很廣,從事務
緯度而言,包括教師的管理、教育教學、地位獎懲和進修培訓等;從人員
緯度而言,包括校長、班主任、普
通公辦教師和民辦教師等。這些內容不僅多方面展現了中小學教師法規建設的歷史面貌,而且為各個時期的中小學教師工作提供了權威性的法律依據和保障。
The climatic characteristics of the equatorial zonal circulation retrieved with ir and wv channels on satellite
衛星雙
通道反演的赤道
緯向環流的氣候特徵
The economic responsibility should be matched and harmonized in different department. in order to accomplish the economic responsibility, we should exam strictly ; prize the elite and penalty the lazy. we should make the general target of the enterprise as a common task of all employees
最後對完善經
緯紡機二級單位經濟責任制考核提出了諸多對策研究和開展全面經濟責任制的創新建議,並以
通過企業erp工程的全面推進,協同推進全面經濟責任製作為今後進一步深入研究的工作。
Sheet edges are normally either graduate lines or grid lines.
頁面圖廓,
通常不是經
緯網線,就是直角坐標網線。
This article introduces the use of electronic control system to overcome the difficulty in weaving large area repeat coloured weft weave on ordinary loom, and ideal weaving effect already got
摘要介紹了自動控制系統在普
通織機上的應用,解決了普
通織機織制色
緯大循環織物的難題,並獲得了較理想的織造效果。
Seasonal variations of water vapor transport over east asia monsoon region are studied, especially that in summer season. the results indicate that there are four vapor inflow corridors to fetch china : southwest corridor, south china sea corridor, southeast corridor and northwest corridor. it shows impact of south asia monsoon, south china sea monsoon, subtropical monsoon and middle latitude westerly belt on summer rainfall anomaly over china, respectively
分析了東亞季風區水汽輸送的季節變化,並著重研究了夏季東亞季風區的水汽輸送特徵,指出夏季東亞季風區水汽輸送有四條
通道到達中國大陸:西南
通道、南海
通道、東南
通道和西北
通道,分別體現了南亞季風、南海季風、副熱帶季風和中
緯度西風帶對中國夏季降水的影響。
The traditional evaluating and testing the tracking precision of o - e theodolite tv tracking system is nearly invalid when o - e theodolite tracking fast moving targets by analyzing in theory and simulating in this dissertation
論文首先通過理論分析和模擬,分析了傳統的評價和檢測光電經緯儀電視跟蹤伺服系統跟蹤精度的方法無法評價光電經緯儀跟蹤快速角速度、角加速度運動目標的情況。