查询词典 China fir
- 与 China fir 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The studys object is bitch forest .spruce forest ,fir forest, chrysanthemum alp, willow community and two couch grass, so the research of the soil microorganisma,soil enzymatic activity in the subalpine coniferous forests in western Sichuan is significant to china .
因此,开展对川西地域中独特的生态环境中土壤微生物群落、以及与碳氮循环有关的土壤功能微生物数量和酶活性等的分布特征研究,进一步揭示川西亚高山植物群落的生态学过程已成为一项重要的研究课题。
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Research on the ecological restoration area in Wuxi country in the reservoir area of three gorges, which considering China Armand pine and mason pine as the dominant plant of the mixed broadleaf-conifer forest including fir-mason pine of mixed forest, cypress-mason pine of mixed forest and pure filbert forest of the soil.
对三峡库区巫溪县生态修复区以华山松为优势树种的针阔混交林、马尾松为主的针阔混交林、杉木-马尾松为主的混交林、柏树-马尾松混交林、榛子纯林与对照地土壤的化学性质进行了对比研究。
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On this basis, it is hoped to draw lessons for rectification of China's putridity problem in system of car used for official business and reform of system of car used fir official business.
然后结合浙江省目前公务用车管理和改革的具体实践,对腐败的内涵进行了界定,并认为公务用车制度存在的一些不正常现象也应纳入反腐败的范畴。
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The infra red spectra of specimens show that there are evident changes of waves at the wavelength of 1743, 1660 and 1605cm-1 which are attributed to the change of C=O in wood. So it is clear that at least hemicellulose, even lignin in wood cell chemically changes during heat treatment of compressed wood of China fir.
红外吸收光谱表明,在热处理过程中波数在1743,1660和1605cm-1附近的羰基峰的变化趋势最为明显,说明在热处理固定杉木压缩木材的过程中,至少半纤维素,甚至木素发生了化学变化
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Shanben Model and Shanben Dynamic Model were selected as mathematic models for binary volume table of artificial China Fir forest in Guizhou.
选择山本式模型与山本式动态模型作为贵州省杉木人工林二元材积式的数学模型。
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Wang Jieying, Zhao Guangjie, Yang Qingling, Qi Chao, Ikuho IidaAbstract: Compression behaviours and subsequent heat treatment of China fir under water-saturated condition and air-dried condition are compared and discussed. Heat treatment is carried out in a common oven and in a vacuum oven, with temperature of 180℃ and time of 6 h, 10 h, 15 h and 25 h respectively.
该研究采用烘箱热处理和真空热处理方法,在热处理温度都为180℃,热处理时间分别为6 h,10 h,15 h,25 h的条件下,研究比较了饱水状态和气干状态杉木试材的径向压缩成型特性及其在不同方式热处理条件下热处理永久固定的效果。
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The experiment adopt capital: Thousand layers of tower entire grass crush , the sour water logging carries , centrifugal fliteration , concentration, neutralize , the organic solvent extracts , oppose an extraction , still organic menstruum of alkali liquor extracts , concentrates , extracts except steps such as miscellaneous , fading and highly valuing crystal from the thousand layers of a tower middle draw, pure fossil China fir alkali A.
本实验采用:千层塔全草粉碎、酸水浸提、离心过滤、浓缩、中和、有机溶剂萃取、碱液反萃取、再有机溶剂萃取、浓缩、萃取除杂、脱色和重结晶等步骤从千层塔中提取、纯化石杉碱甲。
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The optimal parameters for modification of China fir thick veneer can be concluded that: initial moisture content 50%, compression ratio 60%, press time 16 minutes, steam pressure 0.5MPa , press temperature 180℃, pressure 2MPa.
改性杉木薄板的最佳工艺为处理前试件含水率取50%,压缩率取60%,热压时间取16min,蒸汽压力取0.5MPa,热压温度取180℃,热压压力取2MPa。
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From the results, it was found that sufficient resorcinol was needed for PRTF copolymer resins to have cold-setting property. The PRTF copolymer resins made from Taiwan acacia bark extractives with P/=1/1 had cold-setting capability at the ratio of resorcinol to bark extractives was 25/75, but 50/50 was needed for China fir bark extractives to have cold-setting property.
由试验结果得知,PRTF-B共聚合树脂中仍须有足够的间苯二酚始可具备常温硬化性,以相思树树皮萃取物为原料者,在P/=1/1时,间苯二酚与树皮萃取物之比例为25/75者具常温硬化性,而以杉木树皮萃取物为原料者,则间苯二酚与树皮萃取物之比例则须50/50始具有常温硬化性。
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The DSC analysis showed that the cold-setting process of PRTF copolymer resins was an exothermic reaction, and the heat flow appeared mainly at the initial stage after the hardener added, and then trended to relax. The PRTF-B7 copolymer resin made from China fir bark extractives had the exothermic peak more obvious than those made from Taiwan acacia bark extractives.
以DSC分析显示其硬化过程为一放热反应,且在硬化剂添加后之初期反应较为明显,随后即趋於平缓,以杉木树皮萃取物为原料之PRTF-B7共聚合树脂有较明显之放热峰。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。