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wooden strip
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  相似匹配句对
     Influences of Steel Strip Bound on the Strength of Wooden Box
     钢带捆扎对木箱强度的影响
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     WOODEN STRUCTURES
     木结构建筑
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     Wooden Heart
     木头心
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     Strip structure
     板条构造
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     Monash STRIP
     蒙纳什带型建筑
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Among excavated bamboo and wooden strip of Qin and Han dynasties,there are different types of bamboo recorded calendar,which is called“Lipu”(The system of calendar).Actually,The name“Lipu”doesn't reflect the quality of bamboo.We hold that many bamboo and wooden strips should becalled“Liri”(calendar),and others should be named after“Liji”(the record of calendar).

在出土的秦汉简牍中 ,有不同类型的记载当时历法的简牍 ,学者们一般都将它称作“历谱”。其实这种命名并不恰当 ,也并不能真实的反映出简牍的性质。我们认为 ,除了把一部分改成作“历日”以外 ,还有一部分应当命名为“历记”。

To improve the apparent quality of outer concrete,the firewall for the main transformer of 500 kV Guancheng Substation was constructed with specular surface concrete.According to the geometry of the firewall,the dimensions of large-area smooth mould were designed,and the wooden joint strips for mould jointing rationally disposed,so as to prevent defects at the parting after removing the mould and enhance the cubic effect of the whole concrete slab.Meanwhile,the studs for fastening were placed in...

To improve the apparent quality of outer concrete,the firewall for the main transformer of 500 kV Guancheng Substation was constructed with specular surface concrete.According to the geometry of the firewall,the dimensions of large-area smooth mould were designed,and the wooden joint strips for mould jointing rationally disposed,so as to prevent defects at the parting after removing the mould and enhance the cubic effect of the whole concrete slab.Meanwhile,the studs for fastening were placed in the seam of the wooden strips based on computation,which ensured the beautifulness of the firewall.

为了提高外露混凝土的外观质量,500kV莞城变电站的主变压器的防火墙要进行镜面混凝土施工。根据防火墙的几何形状,设计了大面积光面模板几何尺寸,并合理布置模板拼接的压缝木线条,消除了以往拆除模板后会在分缝处留下缺陷的情形,加强了整块混凝土板的立体效果。同时,通过计算巧妙地把紧固用的对拉双头螺柱设计在木线条的压缝内,确保了防火墙体表面的美感。

In this paper, the tree-ring cores collected from six sites in three high-elevation regions (i.e., Miquan, Mori and Barkol) in the middle and east Tianshan Mountains, an arid and semi-arid region in northwest China, during the period from September to October 2002, are used to develop six tree-ring width chronologies using standard dendrochronological methods. The tree-ring cores were collected from the trees of Picea schrenkiana Fisch growing at four high-elevation sites in Miquan and Mori and of Larix sibirica...

In this paper, the tree-ring cores collected from six sites in three high-elevation regions (i.e., Miquan, Mori and Barkol) in the middle and east Tianshan Mountains, an arid and semi-arid region in northwest China, during the period from September to October 2002, are used to develop six tree-ring width chronologies using standard dendrochronological methods. The tree-ring cores were collected from the trees of Picea schrenkiana Fisch growing at four high-elevation sites in Miquan and Mori and of Larix sibirica Ledb growing at two high-elevation sites in Barkol. More than twenty trees were drawn at breast height, and two cores were drawn from each tree in different directions. The sampling cores were mounted in wooden strips, sanded to 600 grits until resolving late-wood boundaries. At last the measured rings were checked using Cofacha software and line plots. The results show that all the average correlation coefficients (R) between sample series and master series at six sampling sites exceed 0.6. Picea schrenkiana Fisch from Mori A and B are regarded as the superior conditions from mean ring-width (R.W.), mean sensitivity (M.S.) and lose-ring ratios of these results. The measured and crossdated ring-width series from each tree is standardized. A chronology is developed for each site. In order to develop the reliable chronologies, we take samples of subsample signal strength above 0.8 (i.e. sss≥0.8) as the beginning for developing the chronologies. Thus, these chronologies are extended to the year of 2002, and the longest chronology has 321 years in all dependable chronologies. The results of correlation and principal component (PC) analysis in all dependable chronologies show that the tree growth among tree species makes a great deal of difference. The statistical results of the chronologies in different tree species show that the standard deviations of the standardized chronologies are higher than those of the residual chronologies, but the mean sensitivity of the residual chronologies is high. Most of the statistics in the common interval analysis at six sampling sites are higher in the residual chronologies than that in the standard chronologies, which reveal that the residual chronologies of some sampling sites of different tree species at high-elevation regions in the middle and east Tianshan Mountains contain more environmental information than the corresponding standard chronologies. These conclusions are important for the tree-ring research in arid and semi-arid areas.

通过对天山北坡中东部高海拔的几个树木年轮采样点样本的研究,建立了天山北坡中东部高海拔树木的一系列树木年轮宽度的可靠年表,其中最长差值年表为321年。差值年表间的相关分析和主成分分析显示,不同树种之间树木生长存在很大的差异。不同树种的标准年表(STD)的均方差都比差值年表(RES)的大,而平均敏感度都较差值年表(RES)的小,说明差值年表(RES)保留的高频振荡信息要比标准年表(STD)多;偏度系数几乎都偏向大于均值的一方,而天山云杉的差值年表峰度系数变化更趋平缓;六个采样点共同区间上的各项指标几乎都是差值年表(RES)值高于标准年表(STD)值,说明天山北坡中东部高海拔的不同树种中差值年表(RES)均含有较高的环境信息。这些树木年轮宽度年表特征将为今后本地区的树木年轮生态学研究奠定基础。

 
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