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Results showed that, with cadmium concentration and stress time increasing, the chlorophyll content in the leaves of the three fruit tree species declined, and the decreasing range was in the order of apricot, plum, and pear from high to low; relative conductivity of the leaves showed an increasing tendency; MDA content first decreased and then increased; POD activity first increased and then decreased; proline content also exhibited an increasing tendency.
结果表明:3个树种随着重金属质量分数和胁迫时间的增加,各树种叶片的叶绿素质量分数降低,其中杏树的降幅最大,李树居中,梨树最小;相对电导率有逐渐升高的趋势;叶片MDA质量摩尔浓度均出现先降低后升高的趋势;POD活性随土壤中镉质量分数的增加先升高后降低;脯氨酸质量分数随着重金属胁迫时间的延长有不断积累的趋势。
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Comparison of Insecticidal Activities between Cyfluthrin and Its Preparation of Sample ( beta-cyfluthrin ) by Epimerization for the Army Worm;2. Toxicity and Field Effect of Different Ratios of Rotenone to Beta-cyfluthrin against Uroleucon gobonis;3. The relationship of the content of mixed surfactant , the content of co-surfactant and the maxium addition content of beta-cyfluthrin in the formation of beta-cyfluthrin microemulsion were studied, and a math theory model was established by using multivatiable linear regression analysis.
通过研究高效氟氯氰菊酯微乳剂形成过程中表面活性剂混剂、助表面活性剂与高效氟氯氰菊酯最大加入量的关系,利用多元回归处理方法,建立了表面活性剂混剂、助表面活性剂与高效氟氯氰菊酯最大加入量三者之间的数学模型;通过测定不同温度下高效氟氯氰菊酯的最大加入量,得出高效氟氯氰菊酯最大加入量随温度升高而增大的规律。
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Table 1 Specific leaf area, carbon content, nitrogen content, ash content and ash-free heat of combustion of three invasive species and three native species in South China
比叶面积、碳浓度、氮浓度、灰分含量和去灰分热值均受到物种因素的显著影响。
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Simulated regression analysis showed that the exponential increase of MDA content, plasmamembrane permeability, auto-oxidation rate of the organ and O2 produc-tion rate and parabolic decrease of SOD activity and GSH content as well as the logarithmic decrease of CAT activity in the stressed leaves were found with the decrease of soil water content....
经回归模拟显示,蔗叶MDA含量、质膜差别透性、O_2产生速率和组织自动氧化速率均随土壤含水量的降低呈指数增加,SOD活性和GSH含量呈抛物线变化,而CAT活性呈对数降低;逐步回归分析定量地指出了水分胁迫下蔗叶SOD和CAT在清除活性氧、防止膜脂过氧化和质膜破坏中的协同作用关系,且受O_2产生的影响;经卡方测验证实,该回归模型各参数与大田干旱胁迫的实际结果相符。
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The research suggested that American white oak is the best choice for the production of grape wine with strong oak aroma and European oak is the best choice for the production of grape wine with harmonious oak aroma, fruit aroma and wine aroma; air drying process of barrel plates would influence the content of total phenol, tannin and volatile substances including vanillin and MOL; and baking intensity will change original content of chemical compositions in oak and make oak barrel possess different aroma characteristics and phenol substance content.
研究表明,酿制橡木香较浓郁的葡萄酒选用美国白栎较好,酿造像木香、果香、酒香协调的葡萄酒则选择欧洲橡木较适宜;板材风干过程对橡木板材中的总酚、单宁含量及挥发性香气物质香兰素和橡木内酯的含量均有影响;烘烤强度可改变橡木木材原有的化学组分含量,使橡木桶具有不同的呈香特性和酚类物质含量。
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The research suggested that American white oak is the best choice for the production of grape wine with strong oak aroma and European oak is the best choice for the production of grape wine with harmonious oak aroma, fruit aroma and wine aroma; air drying process of barrel plates would influence the content of total phenol, tannin and volatile substances including vanillin and MOL; and baking intensity will change original content of chemical compositions in oak and make oak barrel possess different aroma characteristics and phenol substance content.
研究表明,酿制橡木香较浓郁的葡萄酒选用美国白栎较好,酿造橡木香、果香、酒香协调的葡萄酒则选择欧洲橡木较适宜;板材风干过程对橡木板材中的总酚、单宁含量及挥发性香气物质香兰素和橡木内酯的含量均有影响;烘烤强度可改变橡木木材原有的化学组分含量,使橡木桶具有不同的呈香特性和酚类物质含量。
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Soil CEC and organic matter content were higher in forest-land, grassland and farmland than in orchard land, and soil pH was lower in forestland than in other three land use types. Soil pH, CEC and organic matter content were higher in plateau land and sloping land than in gully bottom and terrace land. Soil CEC and organic matter content were higher in dark loessial soil and rebified soil, while soil pH was higher in yellow loessial soil.
不同土地利用方式下,土壤有机质和CEC以林地、草地和农田较高,果园较低;pH则以林地较低,其他利用方式较高;不同地形条件下,3种土壤性质均呈塬面和坡地大于沟道和梯田的趋势;不同类型土壤中,有机质和CEC以黑沪土和红土较高,pH则以黄绵土较高。
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The results showed; The content of IAA tended to be decreased in the early stage, but went up after the full flowering stage; The content of CTK presented the tendency of rising along with the growth of cotton; In flowering and boll developing stage, the content of GA3 tended to be dropped, and the variation trend of GA3 in leaves and in buds was opposite; There was a time difference between the peak value of ABA in leaves and that in buds.
结果表明:IAA的含量随着棉花的生长呈现下降的趋势,进入盛花期后,IAA开始上升;CTK随着棉花的生长呈现上升的趋势;GA3在花铃期有下降的趋势,GA3和蕾中的GA3变化相反;ABA的高峰值和花芽中ABA的高峰值的出现有时间差。
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The SiO2 content of the dike swarms varies from 50.22% to 61.10% and they are basic-intermediate rock series, mainly basic. The Al2O3 content is generally higher than 15% and they are high aluminum basaltic rocks. The lower magnesium index (Mg#=42.77~62.28) and TiO2 content (0.97~2.41%) illuminate that they suffered magnesium-iron minerals' fractional crystallization and that they did not crystallize from original basaltic magma. The values of Na2O/K2O are all above 1, indicating lower K character. Chemically discriminated, these dike swarms are sub-alkaline rock series.
岩墙群的SiO2含量为50.22~61.10%,属于基性和中基性岩类,以基性为主;它们的A12O3含量普遍高于15%,属高铝玄武岩类;具有较低的镁指数(Mg#=42.77~62.28)及TiO2含量(0.97~2.41%),说明它们经历了镁铁质矿物的结晶分异作用,也指示它们不是由原始玄武岩浆结晶;Na2O/K2O都大于1,显示出低钾的特点;岩石化学判别,岩墙群岩石属亚碱性系列。
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The proper alkaline content was in favor of compressive strength. The chemically combined water of paste without activator decreases with the increase of fly ash content, the content of Ca2 decreases after 28d. The increase extent of chemically combined water of pastes with NaOH is higher than that of without activator, and the paste with Ca2 is the same. The XRD peak of Ca2 of paste without activator is high at early age, and the peak of mullite and quartz has less change along with age. When NaOH is added, the peak of quartz of fly ash has clear drop. The surfaces of fly ash activated has eroded trace at 7 d.
研究结果表明:适量碱的掺入对强度有利;未掺激发剂浆体的化学结合水量随着粉煤灰掺量的增加而减少,Ca2含量在28d后开始下降;掺NaOH浆体的结合水量随龄期增长的幅度比未掺激发剂的浆体的大,而掺Ca:试样变化较小;未掺激发剂的水泥-粉煤灰体系在早期Ca2的峰值较大,且粉煤灰中的莫来石和石英晶体的衍射峰随龄期变化不大;NaOH掺入后,28d时,粉煤灰中的石英晶体衍射峰明显下降;时于掺激发别的试样,在7d时粉煤灰颗粒表面已被腐蚀。
- 推荐网络例句
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And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.
同时,论述了一体化管理体系构建中的几个主要问题,包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。
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Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.
运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。
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If you're huffing and puffing at any point during the run, slow down and make sure you can take deep breathes.
如果你任何时候在跑步过程中气喘如牛,降低速度并且确保你能够深呼吸。