主要产物

It is mainly used to kill the broad-leaved weeds.The thesis primarily introduces the development of Propyzamide at home and abroad.

本论文主要介绍了酰胺类除草剂戊炔草胺的国内外发展情况，确定了合成路线并经实验得到产物。

In the enzymatic reaction, the browning substrates are oxidized toο-quinones and finally polymerized into the brown-colored by-products.To identify the browning substrates caused by PPO of pericarp tissues of litchi fruit, the experiments were conducted for the first time to separate, select and purify these substrates.

一般认为荔枝采后褐变主要是由于果皮细胞中多酚氧化酶与酚类底物区域化分布的破坏而导致酶促反应的发生，表现为酚类物质被催化氧化为醌，后者则通过聚合反应形成褐色产物。

Using the scanning electron microscope, the starch granules were observed which gathering and stuffing in scale cell during bulb development.

用扫描电镜观察到鳞片细胞中明显的淀粉颗粒，并随鳞茎的发育充满整个细胞腔。14C示踪技术分析表明，含苞期的14C-同化物分配以地上部为主，集中在花苞部位；花后期的14C-同化物分配以地下鳞茎为主，其中下位叶标记处理的鳞茎分配量占植株总14C的比例达85.8%，证实了植株的光合产物在花后期主要供应鳞茎发育膨大所需。

In order to overcome some of the disadvantages of plant cell suspension culture, such as variability and shear sensitivity of plant cells, limited transfer of oxygen to the culture, mixing and relative low metabolites production, etc.

本文针对悬浮细胞培养中植物细胞剪切敏感性、溶氧及混合困难和次生代谢产物合成能力低等问题，进行固定化长春花植物细胞培养生产生物碱过程的研究，主要涉及固定化方法、影响固定化长春花植物细胞合成生物碱能力因素、及有关固定化长春花植物细胞反应器等问题，应用模糊集理论探讨固定化细胞培养过程的基本规律。

In the processing of the seed of Jatropha curcas L.,the phorbol ester mainly existed in the Jatropha curcas L.seed oil,which could be processed to biodiesel;the meal produced could be used as raw materials of feed by heat-moisture treatment and ethanol-extraction.

佛波醇酯主要存在于小桐籽油中，可进一步加工为生物柴油，小桐籽加工制油的副产物小桐籽粕，通过在加工制油过程中的湿热处理以及粕的醇提，达到作为饲用原料的目的。

The main cause of corrosion case of heat exchange tubes for a heater of nature gas by hot water jacket was studied by means of water quality examination, scanning electron microscope, X-ray photoelectron spectroscope and X-ray diffraction analysis.

用水质分析和腐蚀产物的XRD、XPS、SEM分析等方法及密闭系统静态挂片实验，研究了加热炉腐蚀的主要原因和机理。

Moreover, the other strong adsorbates including〓,〓 etc. have been detected. The main electrooxidation products of isopropanol are acetone and CO〓.

另外，还检测到其它的强烈吸附物种包括：〓，〓〓等；异丙醇主要的电氧化产物是丙酮和CO〓。

The objective of this study is to examine whether and how highly concentrated inorganic aerosols affect SOA formation.

二次有机气溶胶是大气光化学反应的产物，也是城市和郊区大气中细粒子的主要成分。

Objective To study the metabolites and metabolic process of clonazepam in the body.

目的 推测氯硝安定在生物体内的主要代谢方式，检测其代谢产物。

We selected Streptomyces strain FXJ2.014 with high bioactivity for further analysis and found additional metabolites in fermentation extracts of cocultures of strains FXJ2.014, FXJ1.296 and AS 4.1252 respectively with B. subtilis. Quinomycin A was the main bioactive metabolite produced by the monoculture of strain FXJ2.014, while a new quinomycin-like component named FXJ2.014-HB was produced when strain FXJ2.014 was cocultured with B.

发现FXJ2.014、FXJ1.296、AS 4.1252三株菌与枯草芽孢杆菌共培养时产生其在相同条件下单培养时没有的物质，其中链霉菌FXJ2.014单培养时主要产生醌霉素A，共培养时产物中增加了醌霉素结构类似物FXJ2.014-HB。

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。