The thesis is mainly discussing the wild surveying and identification of swertia medicinal plants in sichuan and hubei provinces . the scanning electron microscope shows that the pollen grains of 12 species are all simple grain pollen 为此，有必要对其药材的植物基源、性状和显微鉴别特征、化学成分进行研究，建立和完善本类药材的质量评价体系，从而指导开发和利用。
Finally companied with deep practical backgrounds and applicant values a special case of harvesting - proportionally catching and the question of improving catching tackles which could be transformed into this type of problem were also be discussed 最后，对于具有深刻实际背景和应用价值的捕获的特殊情形?按比例捕获及可划归本类问题的捕获工具优化问题也给出了相应的讨论
Its prevention and treatment is becoming more and more important in the modern society because of the increasing of old people . effective treatments at early stage of this disease may decline the rate of death and disablement to a minimum 脑缺血疾病是多发的中枢神经病变，是常见的致死致残原因，在人口老龄化的现代社会，其防治意义越来越重要，本类疾病的早期发现和治疗可以极大程度地降低致死致残率。
Processing industries of large - scale engraving and cutting , such as garment , leather , clipping , cutting of template , printing , advertisement decoration , building upholster , art gift , computerized embroidery , package , paper product , acrylic product , middle density board etc . nonmetal sheet precision cutting and other industries 本类机器适用于服装皮革、模板切割、包装印刷、广告装饰、建筑装潢、电脑绣花剪裁、工艺品、纸制品、塑胶行业的亚克力板、中密度装饰板等非金属薄板的精密切割行业。
Two hundred and seventy - four sites were detected by 15 10 - mer primers , out of which 262 were polymorphic ( 95 . 6 % of the total loci detected ) . all of the materials were clearly distinguished , of which fourteen samples have forty - five typical rapd bands . before the molecular taxonomy was introduced , people never doubted subgenus yulania ' s disrelation with subgenus magnolia and a close relation between subgenus yulania and michelia , as there is in both genera a sameness seen in their prolepsis and powder chambers dehiscing on the side 3 、通过对玉兰亚属rapd扩增谱带的分析，发现该类群具有很高的多态性：多态位点百分率高达95 . 6 ，产生的多态性带数与所用引物数的比例为17 . 6 ， 15条随机引物清楚地分开了31个种类，其中的14个种共有45条特征性带，在利用rapd标记已研究过的类群中，本类群多态性较高。
Slimming drugs commonly used appetite inhibitors , these drugs through the hypothalamus to influence diet and the central body of the excitement and inhibition play appetite , patients readily accept diet therapy , such as amphetamine - type ; metandienone increase metabolism , is to promote metabolism , so the body ' s adipose tissue accumulation by gradually eliminate , such as thyroid hormone ; biguanides hypoglycemic agents , the drugs in the treatment of diabetes , patients can cause loss of appetite , this is the side effects , but the drug has reduced the cumulative amount of fat and suppress appetite , delaying or reducing gastrointestinal absorption of the sugar , increase fecal fat and he substances excreted , speaking on obesity and is beneficial side 常用减肥药物有食欲抑制剂，这类药物是通过对下丘脑饮食中枢发生影响以及对全身的兴奋而起到食欲抑制作用，使病人易于接受饮食疗法，如苯丙胺类；增加代谢类药，是促进机体代谢，使体内蓄积的脂肪组织逐渐消除，如甲状腺激素；双胍类降血糖药，本类药物在治疗糖尿病时，可引起病人食欲不振，本是副作用，但此药有降低脂肪积存量的作用，抑制食欲，延缓或减少胃肠道对糖分的吸收，增加粪便中脂肪及其他物质的排泄，对肥胖者来说恰是有利的一面。
The products are the raw material of polyurethane elastomer , coating and adhesives , which react with isocyanate to give a chemical grouting material that has been widely used for seepage - proofing and blocking up the loophole of tunnel , dam , underground projects and mine - pits , as well as foundation reinforcement 本类产品为聚氨酯弹性体、涂料、粘结剂的原料，与异氰酸酯反应制得的化学灌浆材料，广泛用于隧道、水坝、地下工程、矿坑层面的防水堵漏及建筑物的地基加固。
