On this condition, the paper put forward a new electric wave transmition model in the microcell , which based on ray tracing method of Virtual Fountain Tree.
在总结前人工作的基础上，本文提出了一种新的基于“虚拟源树”射线跟踪技术的微蜂窝小区的电波传播模型。
This paper makes research on the sonobuoy optimization arrangements using the arrangement optimization model of fountain.
针对声纳浮标的均匀布放问题，借鉴喷泉最优布放模型对此进行了研究。
Please send us samples and your lowest prices for your fountain pens, model 464-b. Samples and prices must reach us no later than 15th of this month.
请将你们464 - B型自来水笔的样品寄给我们，并注明最低价格。样品和价格至迟须于本月15日以前寄到我处。
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