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“Erecting Eyepiece”的意思是“正像镜”.因为天文望远镜(开普勒望远镜)基本光路的成像是倒像,不适合观看地景,所以有些科普类镜子会配一个正像镜,方便用户观景. 正像镜同时提供1.5倍增倍功能.举例来说,如果不用正像镜时系统放大率为20倍,插入正像镜后,系统放大率改变为20*1.5=30倍.

可能在中部

一般过程如下: (1)展开三脚架,调整高度. (2)赤道仪本体与三脚架台连结. (3)安装重锤杆和镜筒环. (4)旋紧赤经、赤纬固定钮,安装镜筒和重锤. (5)赤经、赤纬轴平衡.调整重锤位置及数量平衡赤经轴,松开镜筒环调整镜筒位置平衡赤

My Chinese teacher's last name is Xie, he thirty years old, he has a pair of big eyes, clear stare,very spirit. Short hair and small mouth, everyday smiling, appear very kind. High nose bridge erecting glasses looks very knowledgeable. He is medium

call waiting [通信2113] 呼叫等待5261例句1、Use a land line, and disable call waiting. 使用固定电话,禁用呼叫等待.2、Do you really need call waiting, 3-way calling and all the other extras the phone company charges you for? 你是否真的需要

卓的繁体字:卓 卓的拼音:zhuó 卓的笔画数:8基本解释:卓 zhuó 超高,超,不平凡:卓见.卓然.卓越.卓著.卓绝.卓异. 姓.详细解释:卓 zhuó 【形】 (卓的古字.形声.匕形早声.“匕”表示“人”.本义:超然独立;高明;高超

statue ['sttju:] n.雕像, 塑像 例句 1.The statue is twice life-size. 该雕像大小为实体的两倍. 2.The statue was carved (out of stone). 这座像是(用石头)雕刻的. 3.They decided to perpetuate the memory of their leader by erecting a statue. 他们为永远纪念那位领袖决定建一座雕像. 4.The workers put the statue on its pedestal. 工人们把雕像放到基座上.

可能是硬件损坏(IDE设备,如光驱,硬盘(IDE接口)),这情况的具体问题检测不出来,建议找维修电脑的,就说这个似乎是丢失了某些文件,不然修电脑一上来就要求你换硬件!

stage[steidV]n.舞台, 戏剧, 活动场所, 发展的进程, 阶段或时期, 驿站vt.上演, 筹备, 举行stagestageAHD:[stj] D.J.[steid9]K.K.[sted9]n.(名词)A raised and level floor or platform.高台:抬高的地板或平台A raised platform on which

最佳答案 shop一般指shop [p] n. 商店;店铺vt. 购物vi. 购物;买东西[ 过去式shopped 过去分词shopped 现在分词shopping[FCp]n.商店, 店铺vi.买东西, 购货shop[FCp]n.[英]商店, 店铺(=[美]store); [美](大商店内的)专业零售部[服务

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