查询词典 plant composition

C NMR, IR, GC MS and TG combined with some techniques including solvent extraction method, TPO and structure characterization were applied to determine the components of the deposit on the coked β zeolite catalyst after reaction for 8?000 h in pilot plant scale. It was shown that the composition of the deposit ...

用13CNMR ，IR ，GC MS ，TG等手段，并结合溶剂萃取法、TPO和结构分析等方法，确定了改性β沸石催化剂上沉积物的主要成分是多异丙基苯和四氢化萘，且主要分布在沸石孔道内；同时，快速升温后恒温烧炭的效果优于慢速升温后恒温烧炭的效果

Some useful conclusions were drawn: degraded endpoint of scrub community in Dagou watershed may be marquises in which dominant species are those shrubs in the invasive species response group; plant community degraded as a major form of structural decline, its species compositional change have hysteresis effect, and community structure may be more sensitive indicator to disturbance than species composition.

群落退化主要表现为结构的退化，而物种组成变化相对滞后，表明群落结构较物种组成对干扰的响应更敏感，因而可作为干扰的指示者。

On the northern slope of Changbai Mountain subalpine spruce-fir forest plant species composition our country are boreal spruce, and alpine boreal forest tree species in the main update.

浅析长白山北坡亚高山云冷杉林的植物种类组成云杉是我国寒带、寒温带及高山林区主要更新造林树种。

Oil pollutants not only impact wheat emergence, plant height, panicle length but also the germination rates of corn, soybean and cotton seed which is the impacted mostly. Through field comparative analysis between apple trees near wells and those without pollution, index of leaf senescence of fruit trees, apple leaf chlorophyll content and nutrient composition are impacted slightly by the development of oil.Specific measures for the environmental impact of oil development should be issued systematically from the perspective of the government and the public.

石油类污染物对小麦的出苗率、株高、穗长影响较大；石油类污染物对玉米、大豆和棉花种子的发芽率均有影响，其中影响最大的是棉花种子；通过野外调查选择油井附近的苹果树和对照点没有污染的苹果树进行对比分析，发现石油开发对果树的叶片衰老指数、叶片叶绿素含量和苹果的营养成分等影响较小。

Art by the company were in a stone art works, art in stone composition of the Plant.

宗艺公司由宗艺石材一厂、宗艺石材二厂组成。

The ash of desulfurizing furnace is new type solid waste in fire power plant,the composition and characteristic has close relationship with its discharge mode .

脱硫灰渣作为火电厂产生的一种新型的固体废弃物，其组成和性能与其排放方式有着密切的关系。

By analyzing the composition of the feed and the specification of the product, a new process for the recycle of hexane and cyclo- hexane solvent of SBS plant in Yanshan PCGC is proposed.

通过对橡胶厂SBS车间溶剂回收工段进料及产品要求的分析，提出了己烷溶剂回收采用一塔流程的设计观点；经采用AspenPlus进行模拟，确定了一塔流程的可行性；并对目前的溶剂精制塔进行了核算，提出了目前两塔流程改为一塔流程操作的可能

Modification of vent gas treatment system in extraction plant;2. The operating mode of the engine and the composition of vent gas has the most direct connection.

尾气成分与发动机的工况有最直接的联系，通过实验总结出发动机各部分技术状况与尾气成分间的关系，分析了尾气成分异常的原因。

It is important to clarify effects of tourism disturbance on plant species composition, diversity and community structure in kernel spot for effective conservation and sustained tourist management in Jiuzhaigou, China.

目的是阐明九寨沟核心景区旅游干扰条件下植物多样性与群落结构及其特点，揭示旅游干扰与植被结构和生物多样的相互关系，评估九寨沟旅游管理的有效性，探索减免旅游干扰影响的对策与措施。

Pure methyl esters were prepared using common oil plant seeds and the fatty acid composition of the achieved oil was measured by capillary column chromatography.The kinds and dosage of reagents for fast preparation of the methyl esters were investigated and the chromatographic conditions using two kinds of capillary columns were optimized.

本研究通过参考文献，直接使用常见油料植物种子制备纯油甲酯进行分析，探讨了快速制备甲酯的试剂选择及用量，强极性和弱极性的两种不同类型毛细管柱的最佳色谱分析条件，并将测定的主要脂肪酸含量与国家标准进行比较，结果较为一致，而且平行测定的相对标准偏差表明方法有较好的精密度和重复性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。