• 本文能量结构槽齿应力

    This paper analyses the stresses in a notch joint of timber truss by using energy method.

    youdao

  • 采用导向曲线编制了辽东地区日本落叶松地位指数表。

    Site index tables regarding Japanese larch in eastern Liaoning were mapped out by using stem analysis guide curve.

    youdao

  • 试验工平刨床空转切削时噪声源噪声频率特性各种降噪方法

    Testing and analyzing the noise source of idle run and cutting, noise frequency characters and all kinds of methods for noise reduction for the surface planer were carried out.

    youdao

  • 通过杨树标准地析木调查建立了预测精度较高的杨树生长收获模型

    On the basis of analyzing and investigating the plots and stem analysis of poplar, the growth and yield models of poplar were established.

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  • 造纸黑液质素磺化进行了研究,得出了黑液及酸析木质素磺化的工艺条件

    A study on the sulfonation condition of lignin and paper-making black liquor was made, and the conditions were determined.

    youdao

  • 目的运动生理学角度兰拳运动特点健身价值推广兰拳提供科学依据

    AIM: To analysis the movement feature and body building worth of Mulanquan from the angle of athletic physiology, and provide scientific evidences for spreading Mulanquan.

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  • 回顾相关文献基础上家具出口情况以及影响中国制家具出口主要贸易壁垒

    On the basis of reviewing relative papers, this paper analyzes the status and those main trade barriers influencing the export of Chinese wooden furniture.

    youdao

  • 期权定价模型应用正确认识原料基地战略价值限额采伐政策提供良好基础

    This apply of the option model offers a good foundation to understand the strategic value of materials base, and analyze the felling quota policy.

    youdao

  • 运输过程基础,结合材运输特点,建立直达、中转混合运输问题的数学模型

    Based on the analysis and the characteristics of timber transportation, the mixed transportation model was built with nonstop and secondary transportation.

    youdao

  • 本文区域调查基础上,通过比较不同经营措施落叶松种群生物量生长量影响

    This article compares the effects of different management measures on biomass and growth of larch by analyzing the parse tree based on researching the sample.

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  • 通过试样扫描电镜照片,研究了剖面多孔结构特征,采用计算了分形维数。

    The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.

    youdao

  • 通过试样扫描电镜照片,研究了剖面多孔结构特征,采用计算了分形维数。

    The porous structure of wood samples on their cross sections was analyzed using scanning electron microscope images, and their box-counting dimensions were calculated.

    youdao

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