酸木

It indicated that the growth and acid production of S.mutans were higer in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration.

在8%、12%、16%浓度下，赤藓糖醇培养基的A值较木糖醇培养基低，pH值较木糖醇培养基高，说明变异链球菌在含8%、12%、16%赤藓糖醇的培养基内的生长和产酸能力明显较相同浓度木糖醇培养基低。

Results The data of A were higher in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while lower in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration. The data of pH were lower in 0.5%, 1%, 2% erythritol culture medium than in xylitol culture medium at the same concentration, while higer in 8%, 12%, 16% erythritol culture medium than in xylitol culture medium at the same concentration.

结果 在0.5%、1%、2%浓度下，赤藓糖醇培养基的A值较木糖醇培养基高，pH值较木糖醇培养基低，说明变异链球菌在含0.5%、1%、2%赤藓糖醇的培养基内的生长和产酸能力明显较相同浓度木糖醇培养基高。

A microcolumn high performance liquid chromatography method for the determination of polyphenols (chlorogenic acid, quercitrin 3 glucoside, luteolin 7 glucoside, luteolin 7 galactoside, quercitrin , luteolin) in honeysuckle flower was studied.

研究了用微柱高效液相色谱法测定金银花中的几种多酚类物质(氯原酸、木犀草黄素、木犀草黄素 7 葡萄糖甙、木犀草黄素 7 半乳糖甙、槲皮素及槲皮素 3 葡萄糖甙)的方法。

The study concerns about the measurement of lignin in sulfite cooking liquor with visible light,and the predicting of pulp Kappa number is achieved by the measurement of dissolved lignin in sulphite cooking liquor.

本研究是用可见光分光光谱技术在线测量酸法制浆过程蒸煮液中木素的浓度，通过蒸煮液中溶出的木素含量去推算纸浆中木素含量和纸浆的卡伯值。

To improve water solubility of betulin, two acyl groups were introduced at C-3 and C-28 hydroxy groups of betulin. 3, 28-di-O-glutaryl-betulin was synthesized with pyridine as solvent and DMAP as catalyst from betulin and glutaryl anhydride.

为了增强桦木醇的亲水性，对桦木醇的C-3位、C-28位羟基进行修饰，在吡啶作溶剂、二甲基氨基吡啶作催化剂的条件下，与戊二酸酐反应合成桦木醇戊二酸酯。

The guaiacol methods of synthesizing vanillin mainly includes: nitroso group method, Glyoxalic acid method, formaldehyde method, Reimer-Tiemann method, Trichloroacetaldehyde acetochloralb method, electrolytic oxidation method.

愈创木酚法合成香兰素的方法主要有亚硝基法、乙醛酸法、甲醛法、Reimer-Tiemann法、三氯乙醛法、电解氧化法，本文综述了愈创木酚法合成香兰素的研究进展，并对愈创木酚法合成香兰素提出了展望。

The micromechanism is determined by ESEM and the adsorption film thickness is determined by elliptical polarization, which the smooth surface of coal adsorbs the lignosulphonate and modified lignosulphonate. It is disclosed that the intrinsic reason why the pulping property of modified lignosulphonate is better than lignosulphonate.

采用环境扫描电镜和椭圆测厚仪分别测定了木质素磺酸钠及改性木钠在溶液中的微观结构和在光滑的煤表面的吸附膜厚度，从微观结构和吸附膜厚度两方面揭示了改性木钠制浆性能优于木钠的内在原因。

Soil conditioning agent; utilization of black liquor; modified lignin; aluminum toxicity; ligand; sulfonated lignin; alkaline -oxygen treated lignin; gel filtration chromatography; muconic structure.

农业科技，农业基础科学，土壤学土壤改良剂；黑液利用；改性木素；磺化木素；氧碱处理木素；铝毒；螯合剂；凝胶过滤色谱；己二烯二酸结构

Wood fiber was used as a filler in low density polyethylene.

研究了用改性钛酸酯类偶联剂TC-POT、TC-PBT处理木纤维和接枝氰乙基改性木纤维对低密度聚乙烯／木纤维复合材料力学性能的影响。

Our company mainly operating mainly of the Ming and Qing furniture; of the types include: shelf bed, Rohan bed, couch, tables, text, chairs, cabinets, and outline in gold screen door the first woodcarving, wood flower window, stone carving and so on, to collect and spread all over the country such as: Sichuan, Shaanxi, Shanxi, Shandong, Zhejiang, Hunan, Hubei, Jiangxi, Fujian and other provinces, autonomous regions, materials include: sandalwood, pear,á, oak sleepers, nanmu, cedar, walnut, teak, elm, Lauraceae wood, etc., as well as antique furniture with dilapidated antique restructuring some of the new furniture, but also can be customized according to the needs of the guests of new Antique furniture.

我公司主要以经营明清家具为主；其种类包括：架子床、罗汉床、榻、桌、案、椅、柜、描金屏风、木雕门头、木雕花窗、石雕等，收集地遍布全国各地如：四川、陕西、山西、山东、浙江、湖南、湖北、江西、福建等省区，材质包括：紫檀、黄花梨、酸枝、柞枕木、楠木、柏木、胡桃木、柚木、榆木、樟木等，另外还有用残破古典家具改制的一些古色古香的新家具，同时也可以根据客人的需要定做新造仿古家具。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。