金丝楠木鉴别与收藏

来源 :收藏 | 被引量 : 0次 | 上传用户:chxong
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
1由于我国幅员辽阔,楠木品种很多,但因产地不一而质量参差不齐,价格差异很大,广大收藏者对此有如雾里看花。据调查研究,我国主要的楠木品种有近百种,但以桢楠品质最优,原因有三:一是桢楠木质最为细腻,温润如玉;二是桢楠老料随岁月积淀和空气接触不断氧化,木中结晶率会逐渐增加,金丝会 1 Due to the vast territory of our country, there are many species of Phoebe, but due to the uneven quality of origin and the large differences in price, the majority of collectors are like foggy flowers. According to the investigation and study, there are nearly 100 species of Phoebe in China, but the best quality is Ching Nan because there are three reasons: First, Phoebe Nan is the most exquisite and moist jade; Second, Phoebe Nanzheng keeps accumulating and air contact Oxidation, wood crystallization rate will gradually increase, gold will be
其他文献
施工中的洛河故县混凝土重力坝工程,位于河南省洛宁县境内。自1955年到目前为止,进行了大量的地质勘探试验工作,取得了一定数量的工程地质资料,特别在河谷坚硬岩体应力状态
t A novel polymer containing the sucrose group was synthesized by radical polymerization from an enzymaticallyprepared monomer, l’-O-vinyledipoyl-sucrose (VAS
概述碧口水电站拦河坝为壤土心墙土石混合坝,最大坝高101米,坝顶长297.36米,坝顶高程710米,坝顶宽8米。大坝填筑在第四纪砂砾石冲积层上。坝基防渗采用1.3米宽的混凝土防渗
在水利水电工程中,如能因地制宜地采用一些壳体结构,常可收到经济和安全的效果。例如,在潜没式泵房、水电站的潜没式厂房以及许多基础工程中,可以广泛地应用球形壳及椭球形
浑匀沉降消光颗分法—文主要的内容是两点:(1)对由黄委,华水等单位联合研制的GDY-1型光电颗分仪的误差进行了分析,提出了减小误差的方法.(2)研究了用浑匀沉降方法延长施测范
汉语词类的划分标准在语法学界一直存在着争议,许多学者都论述过自己的观点,如马建忠、周祖谟、吕叔湘、王力等先生。直到朱德熙先生的《语法讲义》的发表,词的分类标准才基
The synthesis and crystal structure of [Co(NCS)2(hmt)2(H2- O)2]穂Co(NCS)2(H2O)4]?H2O (hmt = hexamethylenetetramine) are reported. The crystal belongs to triclin
一、概述由于电力消耗的增长速率空前上升,迫使水电开发计划的设计者们面对那些在几十年前认为是不可能开发的坝址。但是,为了实现这些计划,就必须提出新的方法。只有这样,
The traditional method of gelatin manufacture has been existing for more than 130 years. Through the continuous and sustainable improvement of the technologica
The topological index F* is defined and obtained by the method of a non-dimensional unit calculation in which three matrices multiply with each other. These mat