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Two kinds of irrigation strategies, including irrigation up to field capacity and fixed amount based on soil texture, were employed with bubbler irrigation system.

结果表明,传统灌溉方式下,优化氮素处理保证了番茄产量,与传统氮肥处理相比,追施的氮肥数量减少了48%;在番茄的主要生育时期内,采用每次灌溉至田间持水量及固定灌额处理的灌溉量分别比传统灌溉处理减少46%和30%;采用同样指标所推荐的氮肥追施数量也分别减少14%和10%,明显减少土壤–蔬菜体系中氮素的表观损失,减轻了由于过量施氮而对环境造成的影响。

Based on the quasi-dimension combustion model, the emission model is set up in this dissertation. The NO emissions in different conditions of LPG engine can be simulated and calculated by the model. The calculated results show that the NO emissions are larger influenced by ignition timing and less influenced by compression ratio, finally, choosing a right coefficient of excess air will have great effect to reduce NO emissions.

本文在建立的准维燃烧模型基础上建立了排放生成模型,利用该模型对液化石油气发动机在变参数情况下NO的排放生成情况进行了模拟计算,计算结果表明点火提前角对NO的生成影响较大,压缩比对NO的生成影响较小,而选择合适的过量空气系数更是对降低NO的生成起着关键作用。

Addition to outside the EU, and Japan starting in May next year the implementation of the new Food Hygiene Law, which limit pesticide residues in tea leaves also make four major changes: First, limit will be set up by the 83 kinds of pesticide residues to About 144 kinds; second is to be located outside the limits of pesticide residues in all according to "all standards" that limit is 0.01ppm; three adopted the "dry tea Law" testing; four things are clear limits excessive pesticide residues will be treated as illegal .

除了欧盟之外,日本开始在明年5月新的食品卫生法,限制茶叶中农药残留实施叶子也提出四点重大变化:第一,限制将设立农药最多的八十三种约一四四种残留,二是要在所有境外的农药残留量的限制,按照"全标准",限制为0.01ppm; 3通过的"干茶法"测试;四件事是明确的限制农药残留过量会被视为非法。

Excess function provides a significant and economical method to the application in more than two mixtures. These methods decrease the experimental work of describing multi-components.

过量函数对组分在二个以上的混合物的应用提供了一个有意义的、省力的方法,这种方法为描述多组分混合物减少了所需的实验工作。

In iron-deficient cells, photosynthetic pigments content decreased, efficiency of photosynthesis was low, With the increase of the concentration of the iron-chelator 2, 2'-Dipyridyl in media, Fv/Fm decreased, indicating photoinhibition increased, the results were consistent with previous research; Heterocyst induction had one delayed time dependent on the status of iron-deficiency, More severe of the iron-deficiency condition, more late of the heterocyst induction, It is possible that certain iron-related genes may directly regulate heterocyst development; under different iron limitation conditions, Protein pattern were different, more serious of the iron-deficiency conditions, less bands of the protein pattern, We could not find the iron-deficiency induced protein; In general the toxic effects of ROS were potentiated by excess iron, But our results revealed that even under iron-deficiency conditions, Oxidative damage existed.

铁限制的细胞光合色素含量下降,光合作用能力下降,随着铁螯合剂2,2'-dipyridyl浓度的增加,叶绿素荧光F〓/F〓逐渐降低,显示光抑制变强。与前人的研究结果相似;依赖铁缺失状态,异形胞诱导有一段推迟的时间,铁缺失越严重,诱导越迟,推断某些铁相关的基因会直接调节异形胞发育;在不同铁营养条件下,蛋白质图谱的变化趋势很明显,缺铁越严重,则蛋白质谱带数愈少,但本文未能找到特异诱导蛋白;一般认为铁过量情况下ROS产生加强,本文结果显示即便在铁缺失条件下,也有氧化胁迫伤害,而且缺铁越严重,活性氧伤害越大。

Inertial force of crankshaft-connecting rod in a V-cylinder engine have influence on vibration and comfort in vehicle.

V型双缸发动机中曲柄连杆机构的惯性力的大小与方向对车辆的振动和舒适性方面有相当大的影响,在摩托车发动机中一般采用过量平衡调整一次惯性力的方法,但长期以来缺乏有效的实验研究手段。

When adding the variable of mismatch between education and occupation to wage function, its effect is more significant Next, rate of returns in Taiwan, no matter on overeducation or on adequate-education is higher than rate of returns in America and Europe.

薪资函数在投入教育与职业不相称的变项后,统计的解释量增加。其次,我国的教育的报酬率不论在过量教育或是适量教育方面,均高於欧美国家,教育投资的数量仍属合适。

I found it disgustingly slow and to provide tiny live food I had to collect nauplii of Cyclops (freshly born small Cyclops: crustaceans that live in the paddock ponds) on a daily basis, strain them to the required size and not overfeed.

为提供微小的活食我不得不每天捞取Cyclops的无节幼虫(刚出生的Cyclops:生活在小牧场周围的池塘中的甲壳类),然后筛出要求的大小并不能过量喂食。

Colleges shouldn't oversell, and students need to be realistic about their options based on their grades, test scores, interests and goals.

高校不应人数过量,学生需要有现实的态度,因为他们的选择是根据自己的年级,考试的成绩,利益和目标而定的。

First, our studies provide convincing evidence that the genome is pervasively transcribed, such that the majority of its bases can be found in primary transcripts, including non-protein-coding transcripts, and those that extensively overlap one another.

首先,我们的研究提供了可靠的证据表明基因组是普遍被转录的,像基因组里面的大多数剪辑都可以在初级转录产物中存在,其中包括非编码蛋白的转录产物,和那些过量表达的冗余禅悟。

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推荐网络例句

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援,我们正徵召国家所有各种的力量:我们的外交及发展,我们的经济力量与道德劝说,所以你们与其他军人不须要孤独地负起国家安全的责任。

Imagine yourself to be an actor in a play on the stage.

设想你自己是一个演员在舞台上表演。