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The formation and the mechanics of the sound source of the spreading machine are explored and the main approach to find the sound source of the spreading machine are studied.
研究了摊铺机噪声源的形成和产生机理,探讨了摊铺机噪声源识别的主要手段,并运用综合评判的方法结合频谱分析,用理论结合试验的方式对摊铺机噪声源进行了有效的识别,找到了对驾驶员耳旁噪声产生重要影响的主要噪声源。
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A flat high efficiency super-broadband source was presented. We achieved a C+L-band superfluorescent source, in the region from 1524. 0 to 1600.4nm, the power of the ASE are over -12. 0dBm and the ASE profile excursion is only ±1. 4dB in the region from 1539. 2 to 1600.4nm. The power of the ASE is 22. 1mW and the power conversion efficiency is 18. 8%. 9. The amplification characteristics of thulium-doped fiber amplifier had been studied using the basic theory for fiber amplifier. The connection between the Tm-doped fluoride fiber and silicon fiber was accomplished, and we studied the TDFA and the reason that the expecting results hadn't achieved had been analyzed. The assumption of the Er-Tm-co-doped silicon fiber had been presented, and we studied the Er-Tm-co-doped silicon in cooperation with the correlative corporation, some results had been got and the further studies are carried on.
实验结果得到了覆盖C+L-波段的超荧光光源,在1524.0-1600.4nm波长范围内,自发辐射谱的功率均高于-12.0dBm;在1539.2-1600.4nm波长范围内,自发辐射谱不平坦度为±1.4dB;荧光总功率为22.1mW,功率转换效率为18.8%; 9、应用光纤放大器的基本理论,理论分析和研究了掺铥光纤放大器的放大特性;解决了氟化物掺铥光纤与硅基光纤的连接问题,进行了TDFA的实验研究,分析了没有得到预期结果的原因;最后提出了铒-铥共掺硅基光纤的构想,并与有关单位合作,共同研制了铒-铥共掺硅基光纤,得到了一些前期结果,进一步的研究仍在进行当中。
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One is the comparison with violet durable, inexpensive source of light, in a variety of plate without treatment process; three is to speed up the plate sanshang, scale; 4 is to increase the digital source of lead characters chromatic number, step up, process, color management, so that the traditional business card printing products can be easier to keep up with the digital proofing.
一是拔存紫激光等比力耐用、昂贵的光源;二是拔存百般版材不任办理工艺;不一是放慢版材的国产冻、范畴冻;四是补充数码打样机色数,放松泉源、历程、终端摆设的色彩处置,以便使古板制卡产物可以比力便当不天追上数码打样的成果。
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In the National Natural Science Fund Project, supported by the Institute through 10 years in a row on the lake dried up Ebinur region of proliferation and the accumulation of observations and sampling analysis found that,Lop Nur, the Ebinur Lake, Xinjiang艾丁湖region is the main source of salt dust, from the bottom of the lake dried up Ebinur region of dust is an important source of salt dust material, Salt in the region of the frequency of dust storms has created extremely favorable conditions.
据中科院新疆生态与地理研究所吉力力阿不都外力研究员介绍,在国家自然科学基金项目支持下,该所通过连续10年对艾比湖地区干涸湖底的扩散和堆积进行观测和取样分析发现,罗布泊、艾比湖、艾丁湖地区是新疆盐尘暴的主要策源地,源自艾比湖地区干涸湖底的粉尘是重要的盐尘暴物质来源,为该地区盐尘暴的频发创造了极为有利的条件。
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Generally a very good agreement was observed between experimental and simulated results , not only in terms of source spectra and overall sound levels, but also in terms of the noise source distribution in the rotor plane as a function of frequency and observer position.
一份非常利益协定通常被观察了在实验性和被模仿的结果之间,不仅根据来源光谱和整体声音强度,而且根据噪声源发行在电动子飞机作为频率和观察员位置功能。
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The availability of detailed acoustic array measurements on the same turbines provides a unique possibility to assess the predictions not only in terms of source spectra and overall sound levels, but also in terms of the noise source distribution in the rotor plane as a function of frequency and observer position.
详细的音响列阵测量的可及性在同样涡轮提供一种独特的可能性估计预言不仅根据来源光谱和整体声音强度,而且根据噪声源发行在电动子飞机作为频率和观察员位置功能。
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NEXT, the effects of trailing edge noise directivity and convective amplification2 (including the Doppler frequency shift) are applied to these radial source strengths , to obtain the effective noise source distribution in the rotor plane ,as perceived by an observer position was taken to be the position.
其次, 后缘噪声方向律的作用和对流amplification2 向这些辐形来源力量被运用,获得有效的噪声源发行在电动子飞机,as 由职位被接受是位置的观察员察觉。
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There are the root source of heart disease was the source.
根有根源,心病是源。
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Let students to be familiar with the basic characteristics and formation mechanisms of oil-gas, to grasp the evaluating indexes of source rock, reservoir, seal and oil-gas reservoir, to grasp the styles of source-reservoir-seal association, the features of oil-gas migration, the conditions of forming oil-gas reservoir, the factors of oil-gas reservoir damage and the regularity of oil-gas reservoir formation.
使学员熟悉油气的基本特征及形成机理,掌握生油岩,储集层,盖层及油气藏的评价指标,掌握生储盖组合的型式,油气运移的特点,油气成藏的条件,油气藏破坏的因素及成藏规律。
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Through the analysis of oil or gas accumulation conditions of K_1n_2 in Wuerxun depression, this paper points out that there are the differences in organic matter abundance of source rock, the quality space matching relation between caprock and source rock, the lateral seal of faults and oil or gas migration form of K_1n_2 between the south and north of Wuerxun depression.
分析了乌尔逊凹陷南二段油气成藏条件,结果表明:乌尔逊凹陷南二段南北部在源岩有机质丰度、盖源质量空间匹配关系、断层侧向封闭性和油气运移形式上存在着明显的差异性;乌尔逊凹陷北部南一段源岩有机质丰度、南二段和大一段盖源质量空间匹配关系、南二段断层侧向封闭性和油气运移形式均好于南部,导致乌尔逊凹陷北部南二段油气供给、运聚及保存条件均优于南部。这即是造成乌尔逊凹陷北部南二段油气显示好于南部的根本原因
- 相关中文对照歌词
- Open
- Open Up
- Open Up
- Keys Open Doors
- Source Of Infection
- Peace (You Have Delivered My Soul)
- Faith In Love
- Mighty God
- Open The Door
- Cameo Lover
- 推荐网络例句
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Use nationalization degree and the relationship that commercialize degree, condition of calculable market economy plays scope of optimal and state-owned economy.
利用国有化程度与市场化程度的关系,可计算市场经济条件下最佳国有经济规模。
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The kinds of extractant also effected desulfurization rate .
萃取剂对脱硫率的影响也很大,乙二胺的萃取效果优于甲醇的。
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With Barr chisels, you can peel off a paper-thin piece of wood without any trouble,' he says.
他说,用Barr的手工凿子,你可以毫不费力地削下像纸片一样薄的木头。