水分
- 与 水分 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In this paper, effects of surplus water on crop water deficit index were considered, and the calculating method of CWDI was modified. The frequencies of different classes of drought were calculated and their temporal and spatial distribution characteristics were analyzed by the modified method of CWDI subsequently.
考虑盈余降水对水分亏缺指数的影响,修正了的水分亏缺指数计算方法,并依据玉米的水分亏缺指数,分析了季节性干旱发生频率的时空特征。
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The saving-water effect of Radish and Cabbage under PFM and appropriate irrigation,and the drought-resisting of radish seedling which seed was soaked by CaCl_2 were systematicly reseached by field observation and the experiment in door.The main results were summaried as follows:The soil temperature of 0~20cm cultivated layer was increased 3-4.5℃ in early growth period was only 1℃ in late growth period by PFM;there was more water saved up to 20.84mm in 0~60cm soil layer by PFM than no PFM in the early growth period of Radish;the yield and water use efficiency of Radish in L4 were exceeded respectively 10.1% and 21.9% of that contrast, the yield and water use efficiency of Cabbage in G4 were exceeded respectively 8.7% and 26.58% of that contrast, under PFM and appropriate irrigation.
主要研究结果如下:地膜覆盖在植株生长前期耕作层平均可增温3~4.5℃,在生长后期增温幅度减小,仅有1℃左右;地膜覆盖在植株生长前期可有效的保持土壤水分,在萝卜生长前期,使0~60cm土层内多储水20.84mm;在覆膜不灌水充分利用自然降雨的条件下生产萝卜,可比裸地正常灌水萝卜增产10.1%,水分利用效率提高21.9%;覆膜只浇一水生产甘蓝,可比裸地正常灌水生产甘蓝增产8.7%,水分利用效率提高26.58%。
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At last the breeding selection, density determination and spatial pattern are discussed and also rational density zones of some shrub and arbor breedings are suggested on base of water relationship theory and spatial characteristics of soil water utilization.
最后,结合灌木树种的水分关系和灌木对土壤水分利用的空间特征,简单地叙述了防沙治沙等生态建设工程应用水分原理选种的原则、适宜密度、确定和配置方式,并给出部分灌木树种的适宜密度区间。
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The paper summarized signification and studies of differency mechanism of WUE among differenct species of crops, and next study advisies were put forward: in Huabei Plain of north China, we should study anniversary WUE of deep soil moisture under deficit irrigation conditions.
笔者就作物水分利用效率的内涵和不同品种间水分利用效率差异的生理生态机理进行了综述,并提出了水分利用效率的研究方向。
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PerMeability of Masson pine wood and the relationship between perMeability and water transfer during high teMperature drying were studied and discussed in this paper,a conclusion was Made that perMeability of wood has a very big effect on water transfer above fiber saturation point and less effect on water transfer under fiber saturation during high teMperature drying.
对马尾松木材的横向渗透性进行了测量,讨论了马尾松木材的渗透性与高温干燥中水分迁移的关系,认为在高温干燥过程中,纤维饱和点以上木材的渗透性对干燥过程中水分迁移速度的影响最大,纤维饱和点以下木材的渗透性对干燥过程中水分迁移速度的影响较小。
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The moisture diffusion coefficient was increased at the early drying stage when the moisture content was high,and hit the maximum value when the moisture content drew close to the fiber saturation point,and then decreased gradually as the moisture content decreased.
结果表明:干燥温度越高,干燥各阶段水分扩散系数及平均水分扩散系数也越大;初始高含水率阶段,随含水率逐渐降低,水分扩散系数呈逐步增加趋势,在纤维饱和点附近时达最大值;随后,随含水率逐渐降低呈逐步减少趋势。
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Our results showed 1 The changes in trends of leaf traits response to the rainfall gradient differed either with species or with a specific trait; 2)The same trends were found at the functional group level, However, leaf traits for grasses tends to be less sensitive, then for forbs, and the legumes is the most sensitive functional group along the rainfall gradient, indicated that the Grass function group is quite strong to the soil moisture content tolerance, and which certainly explained to the local vegetation distribution and the substitution between species.
主要结论如下:1 叶片性状在降雨量梯度上的变化趋势在物种水平上表现出多样化的特点,性状的变化趋势是否有显著的格局取决于物种或特定性状。2 叶片性状对水分梯度的响应在功能群水平上表现出各自的特点,Grass功能群对水分梯度的响应敏感性较低,Forb居中,Legume表现出较强的敏感性,表明Grass功能群对水分的耐受性比较强,这在一定程度上解释了当地克氏针茅草原上目前以禾草类为主的现状,对物种之间的替代有一定的指示性。
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The effect of different dehydration methods on the quality of dried fish, its moisture content, and water activity were studied systematically in our experiment, which will provide useful input for mechanically processing half-dried salt-cured saltwater fish .
以冻藏的海水鱼金线鱼、化眉笛鲷与勒氏笛鲷为原料,经解冻、腌制、干制等处理,制成半干咸鱼制品,同时就其加工过程水分含量变化及不同干制方法对成品品质、水分及水分活度的影响进行了较为系统地研究,为实现半干咸鱼的机械化生产及推广提供依
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The varies regression curves have been adapted to calculate moisture in order to increase device precision and overcome the shortcoming of big error at high moisture when using single curve. 3 Varies scope output signal are changed to 4~20 mA and sent to computer over the share-voltage compensation circuit. The multi channel sensor could be auto chosen to display lumber moisture in different position of the kiln. It makes the moisture distribution of lumber in the kiln clearly and drying standard accurately.
所以采用不同的拟合曲线对水分进行换算,以便提高仪器精度,并克服单一曲线造成的高含水率时误差较大的缺点;3:采用分压补偿式测量电路,将不同量程的输出信号转换成统一的4~20mA信号,送至计算机进行集中数据处理;并自动控制多路传感器的选择,分时显示干燥窑中不同部位木材的水分,使整个窑中木材水分分布一目了然,便于准确地制定干燥基准。
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The competitive effects of water absorbents on seed germination was studied by placing wheat seeds on water absorbent substracts with different water contents.
结果表明,吸水剂对环境中水分的吸收及对种子释放水分是相互矛盾的,一般情况下,吸水剂不可能向环境中吸收水分而后供给种子萌发
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。