三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 中??(zhong)新??(xin)網(wǎng)??(wang)北??(bei)京??(jing)10月??(yue)11日?(ri)電??(dian) (記??(ji)者??(zhe) 孫??(sun)自??(zi)法??(fa) 鄭??(zheng)瑩??(ying)瑩??(ying))繼??(ji)9月?(yue)中??(zhong)旬?(xun)啟??(qi)動?(dong)建??(jian)設??(she)日??(ri)喀??(ka)則??(ze)40米??(mi)口??(kou)徑??(jing)射??(she)電?(dian)望??(wang)遠??(yuan)鏡??(jing)之??(zhi)后??(hou)??，中??(zhong)國??(guo)科??(ke)學??(xue)院??(yuan)上??(shang)海??(hai)天??(tian)文??(wen)臺??(tai)10月??(yue)11日??(ri)又??(you)開??(kai)啟??(qi)長??(chang)白??(bai)山??(shan)40米??(mi)口??(kou)徑??(jing)射??(she)電??(dian)望?(wang)遠??(yuan)鏡??(jing)項??(xiang)目?(mu)建??(jian)設??(she)??。??這??(zhe)兩??(liang)臺??(tai)望??(wang)遠??(yuan)鏡??(jing)的??(de)加??(jia)入??(ru)可?(ke)將??(jiang)中??(zhong)國??(guo)VLBI網(wǎng)??(wang)最??(zui)長??(chang)基??(ji)線??(xian)即??(ji)“等??(deng)效??(xiao)口??(kou)徑??(jing)”拓??(tuo)展?(zhan)至??(zhi)約??(yue)3800公??(gong)里??(li)??，有?(you)效??(xiao)提??(ti)升??(sheng)觀??(guan)測??(ce)靈??(ling)敏??(min)度?(du)和??(he)空??(kong)間?(jian)分??(fen)辨??(bian)率??(lv)??，共??(gong)同??(tong)承??(cheng)擔祝(dan)探??(tan)月??(yue)工??(gong)程??(cheng)四??(si)期??(qi)和??(he)深??(shen)空??(kong)探??(tan)測??(ce)VLBI(甚??(shen)長??(chang)基??(ji)線??(xian)干??(gan)涉??(she)測??(ce)量??(liang))測??(ce)定??(ding)軌??(gui)任?(ren)務??(wu)??，并??(bing)促??(cu)進??(jin)中??(zhong)國??(guo)射??(she)電??(dian)天??(tian)文??(wen)科??(ke)學?(xue)觀??(guan)測??(ce)研??(yan)究??(jiu)發(fā)?(fa)展??(zhan)??。 為??(wei)確??(que)保??(bao)望??(wang)遠??(yuan)鏡?(jing)在??(zai)東??(dong)北??(bei)的??(de)嚴??(yan)寒?(han)環(huán)??(huan)境??(jing)中??(zhong)正??(zheng)常??(chang)穩(wěn)??(wen)定??(ding)運??(yun)行??(xing)??，長??(chang)白??(bai)山??(shan)40米??(mi)射??(she)電??(dian)望??(wang)遠??(yuan)鏡??(jing)設??(she)計??(ji)上??(shang)采??(cai)用??(yong)整??(zheng)體??(ti)保??(bao)溫??(wen)技??(ji)術??(shu)??，主??(zhu)反??(fan)射??(she)體??(ti)背?(bei)架??(jia)用??(yong)保??(bao)溫??(wen)材??(cai)料??(liao)包??(bao)裹??(guo)??。??同??(tong)時??(shi)??，天??(tian)線??(xian)系??(xi)統(tǒng)??(tong)采??(cai)用?(yong)全??(quan)實??(shi)面??(mian)面??(mian)板??(ban)??，單??(dan)塊??(kuai)面?(mian)板??(ban)經(jīng)??(jing)度??(du)好??(hao)于??(yu)80微??(wei)米??(mi)??，主??(zhu)反??(fan)射??(she)體??(ti)面??(mian)型??(xing)經(jīng)??(jing)度??(du)好??(hao)于??(yu)0.3毫??(hao)米??(mi)??，最??(zui)高??(gao)指??(zhi)向??(xiang)經(jīng)??(jing)度??(du)好??(hao)于??(yu)5角??(jiao)秒??(miao)??。
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責編：楊之光
審核：吉尼
責編：呂程平