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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The average values for the growth parameters were greater in full shade for D.
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Seedlings were submitted to two light treatments for 3?months: partial shade (52% of full sun) and full shade (12% of full sun).
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In the course of a day, the leaf stomatal conductance fluctuates, following irradiance of the leaf, from minimum in full shade to maximum in sunflecks, including intermediate values in transient conditions.
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On average, adults foraging in full sun were characterized by shorter foraging bouts than those adults foraging in full shade.
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In spite of this difference in the 20 mm high canopy densities, ET and canopy temperature were equal for grasses from all preconditioning treatments when placed in full sun or full shade.
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| | In Xiashu Forestry Experimental Centre of Nanjing Forestry University, treatments of full illumination,half shade and full shade upon cutting stocks,and of ringing and non-ringing upon tree stems of Chinese fir were assigned, and from which developing bud samples were collected during the spring for analysing the contents of organic components. | | 在南京林业大学下蜀实验林场,按杉木伐桩的全光、半荫、全荫处理,以及林木的环割、不割处理,春季分别取休眠芽(前三者)或侧枝顶芽(后二者)样品,进行有机物含量分析。结果表明,各处理样品中水溶性蛋白质含量差别不大,叶绿素含量亦都很低,但休眠芽中的水溶性糖含量比顶芽中要低得多。伐桩萌芽的含糖量并不与各处理条件下的光照和温度呈正相关关系;但伐桩上萌芽数目增多,则含糖量相应下降,表现为幂函数曲线关系。考虑到这种情况,以及幼芽内叶绿素含量水平很低,因此,可以认为萌芽的糖分主要来自根桩本身的碳水化合物贮藏物,而并非来自光合作用。因此,控制一个代桩上的萌芽数目,是获得健壮萌条的关键措施之一。 | | 文摘来源 | | A reactive microgel emulsion has been developed by polymerization unsaturated polyester and/or vinyl monomers and tetrapropylene glycol diacrylate as cross - linkable monomer. The influence of the neutralization degree of polyester, emulsifier, technology of emulsifying and level of polyester on the properties of microgel was discussed. The application of the reactive microgel, with examples, in water - borne metallic base coat, full - shade top coat and intercoat was described, providing a new ... | | 采用三缩丙二醇二丙烯酸酯作为交联单体,与不饱和聚酯和/或乙烯系不饱和单体乳液聚合,合成了反应性微凝胶乳液。讨论了聚酯中和度、乳化剂、乳化工艺和聚酯用量对微凝胶性能的影响。举例说明反应性微凝胶在水性金属闪光底色漆、本色面漆和中涂漆中的应用,为解决水性涂料的水敏感性和流挂提供新的技术途径。 | | 文摘来源 | | In order to identify the environmental causes of inter-population variation in life histories of a Chinese lacertid lizard Takydromus septentrionalis, we determined the thermal environment, lizard body temperature and food availability on the Beiji and Dongtou islands in Zhejiang Province, of eastern China. We compared the thermal environments of the two islands by evaluating the vegetation in May, 2004 and recording the environmental temperatures in the habitat of the lizard from April to September, 2004. ... | | 比较浙江温州北麂岛与洞头岛的热环境、食物可利用性以及动物体温,以辨析北草蜥岛屿种群间生活史特征差异中环境因子的作用。通过测定岛屿上北草蜥栖息地植被和环境温度,比较岛屿热环境的差异。野外测定活动蜥蜴的体温、环境温度和活动规律,实验室温梯板中测定动物喜好体温。用陷阱法测定无脊椎动物多样性和丰度,以比较岛屿蜥蜴种群的食物可利用性。岛屿植被存在差异导致热环境的差异。洞头岛植被高于北麂岛,地表层光线透入率则低于北麂岛。因而,洞头岛郁闭地表的平均温度和最高温度显著低于北麂岛,但两岛裸露地面的温度无显著差异。热环境的岛屿间差异进而影响北草蜥的野外体温。在春季,洞头岛的野外有效温度和基底温度显著大于北麂岛,而两岛北草蜥的体温无显著差异;在夏季,洞头岛的北草蜥体温、有效温度和基质温度均显著高于北麂岛;到秋季,北麂岛蜥蜴体温和环境温度高于洞头岛。地面无脊椎动物多样性和丰度的岛屿间差异表明北麂岛食物可利用性大于洞头岛。岛屿间北草蜥日活动规律和喜好体温无显著差异。本研究表明:(1)温度和食物可利用性存在岛屿间差异,岛屿种群间生活史特征差异可能与之有关;(2)两岛屿北草蜥主要采取行为调节对策来适应自然界的热环境变化,尚未发现热生理学特... | | 文摘来源 | |   |
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