树脂质的
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But systematic research concerning continuous mono-cropping grafted cucumber obstacle isn't reported. This paper systematically studied the effect of continuous cropping soil on grafted cucumber in aspect of its growth, yield and edaphon in pot experiments. Further more, root exudates of squash and grafted cucumber were collected by solution cultivate and adsorption of XAD-4 resins, and bioassay of the root exudates was did with cucumber and squash as receptors, studied allelopathy of grafted cucumber and squash root exudates on cucumber and squash , physiobiochemistry as well as.
本项研究采用盆栽试验以不同连作年限的土壤为基质比较系统地研究了连作年限对嫁接黄瓜的生长、产量和土壤微生物的影响;采用水培和XAD-4树脂吸附法分别收集嫁接黄瓜和砧木南瓜的根系分泌物并以黄瓜、南瓜为受体进行生物活性测定,并对嫁接黄瓜及其砧木南瓜根系分泌物化感作用的生理机制进行了初步探索。
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Especially the most commonly used methods,such as coupling reagent,surfactant and polymer coating methods were introduced in detail.On these basis,the problems existed were put forwarded and the necessity of interface compatibility improvement,the uniform dispersedness of nano-particles in base material and stability control were pointed out.At the same time,further research direction was also proposed.
未经表面处理的纳米TiO2颗粒表面还具有亲水性,不能很好地分散在有机基质中,这大大降低了超细颗粒的实际应用效果;同时在有机高分子树脂中难以均匀分散,界面上会出现空隙,当空气中的水分进入空隙中就会引起界面高聚物的降解、脆化,导致材料性能下降。
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Leaves opposite , very rarely stipulate, petiolate, entire, leathery to papery, usually glabrous; secondary veins usually prominent, numerous to few, oblique to perpendicular to midvein; tertiary veins reticulate, with adaxial brownish transvenous resin canals and abaxial linear or intervenous translucent glands; petiole often with basal liguliform appendage.
叶对生 ,极少具托叶,具叶柄,全缘,革质到纸质,通常无毛;次脉通常突出,许多对很少,偏斜到与中脉垂直;第三脉网状,具正面带褐色的transvenous树脂道并且背面线形或脉间的半透明的腺体;叶柄通常具基生舌状的附属物。
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In addition, our works also indicate that MC-ICPMS technique shows a good potential on Re-Os isotopic measurement. 2. A new method for the determination of low Re-Os abundances and ~(187)Os/~(188)Os in a natural rock sample by MC-ICP-MS has been established in our laboratory. Rock samples were digested in inverse aqua regia in sealed Carius tube for 24 hours at 230°C, then Os was separated from the matrix by CCl_4 solvent extraction, and further purification by microdistillation.
建立了Re-Os同位素样品的化学分离和纯化方法以及MC-ICPMS质谱测定方法:岩石样品的Re和Os化学分离方法是采用Carius管溶样法,结合四氯化碳萃取以及氢溴酸反萃取的方法分离出Os,最后是通过微蒸馏的方法纯化Os;利用阴离子交换树脂的方法分离纯化Re。
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II hybrid. Use the hellspwan ionictype of resin in proportioner, at the same time, if you mix properly, then deal with the water quality of the result is very good.
搀和型。搁置晴不阴离子型的树脂按照必定的比例搀和,同时搁置,如果搀和比例恰当,那么办理后获得的火质是出格好的。
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We can get chitin and protein from the mycelium using the waste alkali and waste hydrochloric acid, so as to enhance its comprehensive benefits.7 The project of the comprehensive treatment of the mother liquorFor the reason of recrystallization, a large amount of mother liquor were produced with the production of IA, except for IA, it also contain residua sugar, mineral and colloid, which could prevent the recovery of IA crystal.
利用回收的树脂再生酸、碱从菌丝体中分离出甲壳素和菌体蛋白,提高的菌体的综合效益。7、衣康酸提取母液的综合治理方案由于衣康酸的提取采用的是重结晶法,因此,生产过程中会产生大量的母液,母液中除了含有衣康酸外,还含有残糖、无机离子及少量小分子胶质物质等,这些成分的浓度相对较高,抑制了母液中衣康酸的结晶和提取,导致这部分母液只能排放,不仅使衣康酸的提取率降低,也加重了污水处理的负荷。
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In order to reduce the ratio of emulsifier to the film former for sizing agent and increase the bonding strength between glass fibers and resin matrix,emulsions with small amount of emulsifier were produced by using high pressure homogenizing machine in emulsion processing.
为了减少乳化剂在浸润剂成膜剂中的使用比例,达到玻璃纤维与树脂基体有更高的结合强度这一要求,通过高压均质机在乳液处理过程中的使用,生产出了仅使用少量乳化剂的乳液。
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The production of crop specific controlled release BB fertilizer is simple and easy to do by mixing different nutrient-lapsed time fertilizers according the different nutrient demand ratio of crops,it should be the developing direction of compound fertilizer in China.
分析了树脂和硫磺包裹尿素缓释肥料发展缓慢的原因和弊端,提出以水溶性聚合物作为尿素和复混肥料的包膜胶结和内质缓释剂,具有降解快对作物无害改善土壤结构成本低等特点,将促进缓释肥料的发展采用生产不同时间段释放养分的缓释肥,按作物不同生育期对养分的需求比例掺混在一起,生产作物专用的缓/控释BB肥料简单易行,应是我国缓/控释肥料的发展方向
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。