1、

For the design target of frequency response given by weight vector at different frequency point, design FIR filter.

以各频点处的基阵权矢量作为FIR滤波器的频率响应指标设计FIR滤波器。

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2、

Study on the Effect of Technological Conditions on Permeability of Microwave Treated Fir

工艺条件对杉木微波处理后渗透性能影响的研究

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3、

The Carbon storage of Chinese fir plantation ecosystem increased with the increasement of age, which of MP was 1.63 times that of YP, and 1.19 times that of MAP, respectively, and most of the differences among forest ecosystems were in the tree layer;

随林龄增大,杉木人工林生态系统碳贮量逐渐增大,成熟林分别是幼龄林和中龄林的1.63倍和1.19倍,而这种差异主要是由乔木层碳贮量差异引起的。

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4、

Evaluation on the Loan Item of Medical Red Bean Fir of ZS Company in HeiLongjiang Province

黑龙江省ZS公司药用红豆杉林贷款项目评估

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5、

Meanwhile, all the optimum and potential distributing regions of Larix gmelinii, Spruce fir forest and Pinus koraiensis have the tendency of moving northwards.

同时,分布于大兴安岭的兴安落叶松、小兴安岭及东部山地的云冷杉和红松等树种的可能分布范围和最适分布范围均发生了北移。

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6、

Studies of the Physical Properties of Clone Chinese fir Wood

无性系杉木木材物理性质研究

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7、

Effects of initial spacing and thinning intensity on wood properties of Chinese fir

初植密度和间伐强度对杉木木材性质的影响

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8、

The plant selected thinning with the intensity at 20%~ 30% was conducted in the Chinese fir seed orchard grew for 12 years in Qingyuan Forest Farm of Zhejiang.

对浙江庆元林场12年生的杉木1代种子园进行强度为20%~30%的选择性疏伐。

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9、

Nutrient input of throughfall in a pine-spruce-fir forest of Changbai Mountain

长白山红松云冷杉林林内降水的养分输入

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10、
11、

The influence of clear cutting Chinese fir plantation on the characteristics of runoff water chemistry are studied to explore the capability of Chinese fir plantation of regulating, accumulating and conserving soil nutrients.

杉木人工林皆伐前后径流水化学特征研究结果表明,杉木人工林皆伐后引起林地土壤养分大量流失。

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12、

Changes of soil nutrients and enzymes activity on Chinese-fir-clear-cutting land and their utilization

杉木迹地土壤养分与酶活性变化及利用

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13、

The determinations of 2, 849 felled trees of fir have shown that. after fir trees had decayed, excellent timber decreased while the processing timber increased.

通过2849株冷杉伐倒木测定表明,冷杉林木发生腐朽后,林种结构有明显的变化,优良林种下降,加工材增加。

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14、

The geographical distribution and suggestion of the main commercial timber production areas of Chinese fir

杉木地理分布及主要商品材生产基地规划的建议

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15、

Circuit design based on time division multiplexing for 63-order FIR digital interpolation filter used in Sigma-Delta audio DAC is presented in this paper.

本文提出了一种基于时分复用技术的应用于Sigma-Delta音频DAC的63阶FIR插值滤波器电路。

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16、

Fir-st, we analyze how KVM influences the timer interrupt response times of the guest RTOS by studying the mechanisms of both interrupt virtualization and time virtualization of KVM.

首先,文章通过研究KVM的中断虚拟化和时钟虚拟化机制,分析KVM将对客户操作系统的时钟中断响应时间产生怎样的影响。

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17、
18、
19、

Micromechanism of carbonization for thinning wood of Chinese fir

杉木间伐材炭化过程微观机制分析

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20、

The effect of forest harvest on the soil thermal regime in the watershed of Chinese fir

杉木采伐对集水区土壤热状况的影响

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