采用平方环实现载波同步信号的提取。
第五章中给出了对各种调制方式的解调模型，成功建立了平方环载波恢复模型。
In chapter 5, demodulation models of many modulation systems are established. Square loop model is established to detect carrier.
多环芳烃在水平方向上的迁移存在色谱效应。
There was a chromatographic effects in the horizontal migration of the PAHs.
这是一片20平方厘米的铜箔，它有696个环。 铜箔的一部分是再生的。
This is a piece of copper 11 foil 20cm square that has 696 rings, a portion of which is reproduced above.
与此同时，商品住宅成交均价为每平方米35449元(人民币，下同)，环比下滑3%。
At the same time, the commodity residential house to clinch a deal price is every square metre 35449 yuan (RMB, similarly hereinafter), fell by 3%.
恒大城位于环市西路，首期总建面积达26万平方米。
EVERGRANDE CITY is located in Huanshi road, The total construction area of initial is 260,000 square meters.
《新建的仿古商业街》上海的老城厢位于上海南市区中华路人民路的环圈内，在这块不到七平方公里的老城区内，蕴藏着上海的历史故事。
New business street the old town of Shanghai is located within Renmin Road and Zhonghua Road of South town, this area less than 7 kilometers contains the history of Shanghai.
漫道占地约500平方米，在连接缓坡之前，它沿着野花草地成环，并穿过现有的小路。
Covering an area of approximately 500 square metres, it does a loop around a wildflower meadow and crosses an existing path, before connecting with a gentle ramp.
漫道占地约500平方米，在连接缓坡之前，它沿着野花草地成环，并穿过现有的小路。
Covering an area of approximately 500 square metres, it does a loop around a wildflower meadow and crosses an existing path, before connecting with a gentle ramp.
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