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Reflux gently for 6 h ± 30 min. Allow sufficient time for the diethyl ether to cool.

缓慢回流6 h ± 30 min。然后让乙醚完全冷却。

RESULTS The optimized processing was: salt dosage of 2.5%,temperature of 135℃, frying time of 30 min. Pinoresinol diglucoside of crude Eucommia ulmoides was twice of processed product.

结果 杜仲的最佳炮制工艺：用盐量2.5%、温度135℃、时间30 min，杜仲生品中松脂醇二葡萄糖苷含量高于炮制品2倍以上。

To establish a MPLC method for the content determination of resveratrol in Polygonum cuspidatum Sieb. Et. Zucc, Analytical column SOURCE 5RPC ST 4.6/150 was used with a mixture of acetonitrile+water (30+70,volume ratio ) as mobile phase ,with a flow rate of 1ml/min and the UV detection wavelength was 306nm, The linear range was 0.6-1.6mg/ml (r=0.9919). The average recovery of prodatin was 103.0%-90.4%(RSD=7.21%). The method is convenient and accurate. Result indicated a reverse phase chromatography media based o n polystyrene/divinyl benzene has excellent resolution for resveratrol in cuspidatum. P rovide theoretical support for process development.

色谱条件采用SOURCE 5RPC ST 4.6/150预装柱，以乙腈/水(体积比30/70)溶液为流动相，流速1ml/min、检测波长为308nm，结果表明，白藜芦醇在0.6～1.6mg/ml的浓度范围内峰面积积分值与浓度的相关系数r=0.9919；所测定的虎杖饮片中白藜芦醇平均含量为0.304％，平均回收率为103.0％～90.4％；实验表明，以聚苯乙烯为基架的反相介质对于虎杖中自藜芦醇具有良好的分辨率，适合其有效成分的检测、分离，对虎杖中白藜芦醇制备的科学研究过渡到工艺开拓有很好的借鉴。

By systemic studies in the lab, the optimal technical and operational conditions had been determined as follows: the dosage of duodenary amine of 100 g/t. the pressure of circulating pulp of 0.045 MPa, the concentration of pulp of 43%, the floatation time of 7-8 min.

通过在实验室浮选柱系统上的试验，优化确定了如下工艺和操作参数：十二胺药剂用量100g/t，循环矿浆压力0.045 MPa，矿桨浓度43%，浮选时间7~8 min。

Results: the best extracting condition for ellagic acid was to add 8 times amounts of the water solution of 1 mol/l hydrochloric acid, and to reflux for 60 min and extract twice.

结果：鞣花酸的最佳提取工艺为用1 mol/l的盐酸水溶液、8倍量、回流提取60 min、提取2次；结论：溶剂类型对鞣花酸的提取率影响最大，本研究确定的鞣花酸提取工艺合理、可行。

Experimental conditions were: two equiponderant crucibles, 3~5mg equiponderant writing and blank paper, static air, heating rate 10℃/min, relative age between 2 days and 5 years.

特征峰出现的条件为：等重的字迹和空白纸分别置于2个等重的坩埚；以装有空白纸的坩埚作为参比；实验气氛为静态空气；升温速率10℃/min；字迹书写后存放时间为2~365×5d。

The optimum reaction condition was as follows: catalyst dosage=4.3% of the amount of ethanediol,reaction time 50 min.1,4-dioxane yield of 84.82% was obtained under the optimum condition.

考察了催化剂用量、反应时间和反应温度等因素对收率的影响，得出最佳反应条件：催化剂用量为乙二醇质量的4.3%，反应时间50 min，收率可达84.82%。

RESULTS: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, better H (826.61 μm) and W (3504.61 μm) were obtained.

结果： 在激光功率与光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，TiZr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

RESULTS: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, H (826.61 μm) and W (3504.61 μm) were obtained.

结果： 在激光功率与光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，TiZr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

RESULTS摘要: When the ratio of laser power to facular diameter was 2.7 kW/3 mm, the powder feeding speed was 90 r/min and the moving speed of numerical control machine was 5 mm/s, better H (826.61 μm) and W (3504.61 μm) were obtained.

结果摘要：在激光功率和光斑直径之比为2.7 kW/3 mm，送粉器转速为90 r/min和数控机床的运动速度为5 mm/s等参数下，TiZr粉末激光立体成形时具有较好的H和W，分别为826.61 μm和3504.61 μm。

Do you know, i need you to come back

你知道吗，我需要你回来

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。