...丁网 详尽的梳理,有益于建筑师“驾轻车,就熟路”,在知道为什 么(wh y )使用可生长建筑材料的前提下,还要懂得怎样(wh e n ,wh e r e a n d h o w) 使用。 另外,针对我国建筑市场状况,可生长建筑材料的应用前景和局限分析也是必 须研究的问题。
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The simulation results show that the identification rate can achieve 99 % and the average identification time is 1.8 ms,when position noise is in the max position error.
仿真实验表明:当位置噪声在估计最大位置误差范围以内时,本算法识别成功率可达99%以上,平均识别时间为1.8 m s,很好地满足了星图识别的要求。
参考来源 - 一种基于星三角形的星图识别算法·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
QUEST You use when to ask questions about the time at which things happen. 什么时候 (用于疑问句,询问某事发生的时间)
When are you going home?
你什么时候回家?
When did you get married?
你是什么时候结婚的?
CONJ If something happens when something else is happening, the two things are happening at the same time. (表示两件事同时发生) 当…的时候
When eating a whole cooked fish, you should never turn it over to get at the flesh on the other side.
吃一整条做熟的鱼时,你永远都不要把鱼翻过来吃另一边的肉。
CONJ You use when to introduce a clause in which you mention something that happens at some point during an activity, event, or situation. 当…时 (引导从句,表示从句中提到的事发生在另一活动、事件或情况期间)
When I met the Gills, I had been gardening for nearly ten years.
我结识吉尔一家时,我已经几乎做了十年的园艺。
CONJ You use when to introduce a clause where you mention the circumstances under which the event in the main clause happened or will happen. 在…情况下 (引导从句,表示从句中提到的情况是主句中已经发生或即将发生的事的前提)
When he brought Imelda her drink she gave him a genuine, sweet smile of thanks.
当他给艾梅尔达拿来一杯饮料时,她给了他一个真诚、甜美、表示谢意的微笑。
CONJ You use when after certain words, especially verbs and adjectives, to introduce a clause where you mention the time at which something happens. 什么时候 (用在某些词尤其是动词和形容词后,引导从句说明某事发生的时间)
I asked him when he'd be back to pick me up.
我问他什么时候回来接我。
PRON-REL You use when to introduce a clause that specifies or refers to the time at which something happens. 当…的时候 (引导表示某事发生的具体时间的从句)
He could remember a time when he had worked like that himself.
他还记得当他自己也像那样工作的那段时间。
CONJ You use when to introduce the reason for an opinion, comment, or question. 既然 (用于引入观点、评论、或问题的原因)
How can I love myself when I look like this?
既然我这么一副样子,我怎么能爱我自己?
CONJ You use when in order to introduce a fact or comment which makes the other part of the sentence rather surprising or unlikely. 而 (引出令人吃惊的事实或评论)
Our mothers sat us down to read and paint, when all we really wanted to do was to make a mess.
我们的妈妈们让我们坐下读书、画画,而我们真正想要做的却是胡闹一阵。
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