Determination of isopimaric acid in leaves of Platycladus orientalis and its preparations Cebai No.V Capsula and Isopimaric Acid Capsula by HPLC;
HPLC法测定侧柏叶及其制剂侧柏Ⅴ号胶囊和异海松酸胶囊中异海松酸
Rosin type can be determined and distinguished from the content of isopimaric acid and the quantity ratio of pimaric acid/isopimaric acid.
用纯马尾松松脂、纯湿地松松脂、纯思茅松松脂制得松香样品;应用DB-5毛细管柱对松香样品中主要的树脂酸含量进行了气相色谱定量分析;通过测定松香样品中异海松酸GC含量和海松酸/异海松酸GC含量的比值,可以确定并鉴别松香所属种类。
Result: Eight compounds were isolated and identified as isopimaric acid(Ⅰ), β-sitosterol(Ⅱ), 24R, 5α-stigmast-3,6-dione(Ⅲ), larixol(Ⅳ), ferulic acid(Ⅴ), lariciresinol(Ⅵ), secroisolariciresinol(Ⅶ)and isolariciresinol(Ⅷ).
结果:从其醇提物的氯仿部分分离并鉴定了8个化合物,分别为:异海松酸(Ⅰ),β-谷甾醇(Ⅱ),24R-5α-豆甾烷-3,6二酮(Ⅲ),larixol(Ⅳ),阿魏酸(Ⅴ),落叶松脂醇(Ⅵ),开环异落叶松脂醇(Ⅶ),异落叶松脂醇(Ⅷ)。
RESULTS Five monomers and two mixtures were isolated and identified as pimaradiene, n-docosyl ferulate, n-tetracosyl ferulate, stigmasterol, n-triacontyl cis-p-coumarate, the mixture of n-tetracosyl trans-p- coumarate, n- hexacosyl trans-p-coumarate, n-octacosyl trans-p-coumarate and defuscin, .
分别为海松二烯 ,3 甲氧基 4 羟基反式肉桂酸二十二烷酯 ,3 甲氧基 4 羟基反式肉桂酸二十四烷酯 ,豆甾醇 ,对羟基顺式肉桂酸三十烷酯 ,对羟基反式肉桂酸直链烷酯的4个系列化合物的混合物 ,直链烷醇的 5个系列化合物的混合物。
The old rubber tires and scaffold ing steel tubes can be used in soft foreshore passage.
为利用废旧轮胎和普通脚手架钢管构建克服松软海滩的通道,对其中的废旧轮胎垫层与松软海滩土体的相互作用机理进行了分析,推导出了废旧轮胎、废旧轮胎垫层以及废旧轮胎和松软土体复合层的压缩模量,提出了松软海滩土体临界压缩模量的概念,建立了复合承载模型。
Experimental Study on Seed Germination of Pinus pinaster Introduced from France;
引种法国海岸松种子萌发试验研究
Pinus pinaster is a light-demand plant, which is resistant to the sandy, arid and saline soil.
海岸松(Pinus pinaster)是一种喜光树种，对风沙、土壤干旱和盐碱有很强的耐受适应能力，尤其适应于气候温暖、大气湿润、土壤或生理干旱明显的沿海沙地、沙丘。
Crude turpentine obtained from the cluster pine tree(Pinus pinaster)of southern Europe.
海松树脂从产于南欧的丛生松树（松属南欧海松）上获得的天然树脂
A Mediterranean pine tree(Pinus pinaster)having a characteristic pyramidal form and needles clustered in fascicles of two.
海松一种地中海松树（海岸松松属），具有金字塔形状和成对簇生的松针
Shanghai Songtian Food Co., Ltd.
上海松田香料有限公司
Study on Thermal Variation Rule of Pimaric-type Acids in Rosin
松香中海松酸型树脂酸热作用变化规律的研究
Study on New Technology for Isolating Levopimaric Acid from Pine Oleoresin
从松脂中分离左旋海松酸的新工艺研究
Operational Mechanism Analyze for Songjiang Export Processing Zone
上海松江出口加工区发展战略及海关监管研究
Study on Composition Variation Relationships of Pimaric-type Resin Acids in Rosin at Acidic Conditions
松香中海松酸型树脂酸在酸作用下的组成变化规律
Shanghai DAISO Machinary Co., Ltd.
上海大松机械有限公司
Genetic Studies on the Roughskin Soulpin Trachidermus Fasciatus in Weihai Based on mtDNA
威海海域松江鲈鱼mtDNA控制区遗传多样性的分析
2- or 3-needled pinon mostly of northwestern California coast.
加州西北海岸的一种二到三针松。
sail with a flowing sheet
【航海】放松帆脚减少风力, 慢开
The ship is completely bur in the soft loam of the sea bottom.
这条船被完全埋到海底松软的肥土里。
The ship is completely buried in the soft loam of the sea bottom
这条船被完全埋到海底松软的肥土里
Travel abroad is no picnic.
海外旅行可不是一件轻松的事情。
a light sponge cake made without egg yolks.
没有蛋黄的松软的海绵蛋糕。
He waltzed across to Helen and sat down beside her.
他轻松自如地走到海伦身边坐下。
He waltz across to helen and sit down beside her
他轻松自如地走到海伦身边坐下
Willie eased himself overside into the sea.
威利轻松地越过船舷跳入大海。