感抗
- 与 感抗 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Beauv effectively, and bensulfuron methyl (30g/hm^2) applied 6 d after rice transplanting could significantly reduce the plant numbers and biomass accumulation of difformed galingale (Cyperus difformis L.) and procumbent falsepimperne . The control efficiency of Huakangcao 78 and Yangdao 6 were 89.16% and 81.86% on barnyardgrass dry weight respectively 50 d after the rice transplanting, 83.56% and 84.93% on difformed galingale dry weight, 95.22% and 88.04% on procumbent falsepimperne dry weight. As a whole, the total dry weight control efficiency were 87.68% and 82.69% on above weeds correspondingly. Moreover, the grain yield of Huakangcao 78 and Yangdao 6 under the condition of 10cm depth water and herbicide application increased 40.33% and 21.36% comparing those under the treatment of 5cm depth water and no herbicide application respectively.
结果表明,水稻化感作用结合深水层可有效抑制稗草的萌发和生长,同时水稻移栽后6d使用苄嘧磺隆(30g/hm^2)单剂处理,明显地抑制了异型莎草和陌上菜的萌发数量和生物量积累;水稻移栽后50d,华抗草78和扬稻6号对稗草的干重防效分别为89.16%和81.86%,对异型莎草的干重防效分别为83.56%和84.93%,对陌上菜干重防效分别为95.22%和88.04%,对这3种杂草的总干重防效分别为87.68%和82.69%;10cm深水层及施用苄嘧磺隆单剂条件下2个水稻品种的产量比5cm水层、不施化学除草剂的处理分别增产40.33%和21.36%。
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A series of theoretical and experimental studies on the microstrip patch antennas with dielectric superstrates is carried out systematically. Firstly, a comprehensive survey of the microstrip antenna technology and its theories are presented. Then, two analysis techniques, named as the spectral domain Green's function method and the spectral domain integral equation method are developed. The SDGF method is a simplified analysis technique, which takes advantage of the spectral domain immittance approach to find the dyadic Green's function for the stratified media, and obtains the complete closed-form formulas for radiation patterns, directivity, efficiency, gain etc. Some interesting calculated results are presented. The SDIE method is capable of determining resonant frequency, radiation characteristics, input impedance etc, for the covered microstrip patch antennas. Comparing with other full-wave analyses it reduced computation and mathematical labour remarkably. The singularities near the pole location of the surface-wave modes and the difficulty of the integral computation over infinite range of oscillating integrands are dealt with actively and documented well. Results predicted by the SDIE method agree extremely well with our experimental results for resonant frequencies of various superstrates. The superstrate effects on impedance and radiation characteristics also have been investigated experimentally so that the gap due to lack of measured data and computed results for multi-layered superstrate has been filled to some degrees and two useful observations have been achieved for weakening the resonant frequency shift and optimizing the microstrip antenna gain. As a meaningful application, the design and analysis of a 4×4 patch array are introduced.
实用微带天线普遍加介质覆盖层来防护热,物理损伤和环境影响,也可能在飞行或严酷气候条件下自然形成覆盖层本论文对带介质覆盖层的微带贴片天线系统地作了一系列理论和实验研究首先,对微带天线技术和理论作了全面的综述然后,发展了两种分析方法,称为谱域格林函数法和谱域积分方程法SDGF法是一种简化的分析技术,它利用谱域导抗法来求得分层媒质的并矢格林函数,并得出方向图、方向性系数、增益等参数的完整的闭式公式,给出了一些令人感兴趣的计算结果SDIE法能确定介质覆盖微带天线的谐振频率、辐射特性和输入阻抗等与其它全波分析方法相比,它明显减小了计算量和数学工作量已有效地处理了表面波模极点附近的奇异性和对振荡的被积函数的无限区间积分计算的困难对于不同覆盖层情况下的谐振频率,由SDIE法所预示的结果与我们的实验结果吻合得很好对于覆盖层对阻抗和辐射特性的影响也已作了实验研究这在某种程度上填补了缺少实验数据和计算结果之间的间隙,并得出了缓解谐振频率偏移和优化天线增益的两点有用的结论作为有意义的应用,介绍了一个4×4元矩形贴片天线阵的设计和分析。
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Through identification of all F 1, F 2 and partial BC 1, BC 2 resistance to wheat spindle streak mosaic disease and tracing analysis of F 3, the heritability of resistance to WSSM was studied in the wheat varieties.
本试验选用17个高抗品种、9个高感品种随机组合进行杂交,通过对F 1、F 2和部分BC 1、BC 2的抗感鉴定结果以及F 3代的追踪分析,研究了小麦品种对小麦梭条花叶病的抗性遗传规律。
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The paper discusses the affection of fault location of AT traction power network by factors of AT leakage, mutual induction between up and down line and rail-ground leakage admittance.
本文讨论了AT漏抗、上下行互感、轨地泄漏导纳等因素对AT牵引网故障测距的影响。
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Methods Air-and bone-conducted ABRs to tone pips were recorded from 24 patients(27 ears)with sensorineural neural hearing loss using SmartEP auditory evoked potential system after otoscope exam,pure tone audiometry and tympanometry were performed....
方法对24例(27耳)感音神经性听力损失成年人行耳鼻咽喉科常规体检、纯音测听、声导抗测试后,应用SmartEP听觉诱发电位仪记录受试者气导和骨导短音ABR。
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Methods Air-and bone-conducted ABRs to tone pips were recorded from 24 patients (27 ears) with sensorineural neural hearing loss using Smart EP auditory evoked potential system after otoscope exam, pure tone audiometry and tympanometry were performed.
对24例(27耳)感音神经性听力损失成年人行耳鼻咽喉科常规体检、纯音测听、声导抗测试后,应用SmartEP听觉诱发电位仪记录受试者气导和骨导短音ABR。
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Among them, 16 cultivars were moderately or higher resistant to potato late blight, 28 cultivars were moderately or higher resistant to potato late blight, 28 cultivars were moderately susceptible or less than that, and 4 cultivars had different resistant due to different altitude, accounting for 33.3%, 58.34%,and 8.33% among tested cultivars, respectively.
抗性表现为中抗以上的品种有16个,占总参试品种的33.33%,中感以下的品种有28个,占总参试品种的58.34%;其中有4个品种的抗性表现因海拔高度的不同而表现出差异,占总参试品种的8.33%。
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Was admitted to hospital on October 6, 2007, diagnostic schizophrenia, the sulfur that use Kui is smooth increase by degrees law, be admitted to hospital sulfur of 3 weeks of Kui is smooth add send 600 Mg/d, patient spirit symptom is improved somewhat, already dare contact with people, but be certain the husband has an affair, the sulfur that add Kui makes the same score 800 Mg/d, when treating the 7th week, the patient becomes aware the whole body is faint, accept is poor, measure temperature 9 ℃ of 37 ·, morrow double legs appears erythema to weighing out, local strut, the about 1 hip inside week, back, prothorax appears group by group erythema, patient skin itchs somewhat feeling, temperature 39 ℃, kui sulfur makes the same score out of service to fight constituent amine medicaments, vein is pushed note dextrose acerbity calcium and vein drop to note vitamin C, remedial 10d, erythema disappears.
于2007年10月6日入院,诊断精神分裂症,用奎硫平递增法,入院3周奎硫平加致600 mg/d,患者精神症状有所改善,已敢和人们接触,但坚信丈夫有外遇,增奎硫平800 mg/d,治疗第7周时,患者觉全身无力,纳差,测体温37·9℃,次日双下肢对称出现红斑,局部肿胀,约1周内臀部、背部、前胸分批出现红斑,患者皮肤略有痒感,体温39℃,停用奎硫平给抗组织胺药物,静脉推注葡萄糖酸钙及静脉滴注维生素C,治疗10d,红斑消失。
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The experiment of oviposition preference of bean pyralid on soybean varieties was conduct in net room. The number of eggs laying on susceptible genotypes were significantly more than those on resistant genotypes.
在人工接虫条件下,研究豆卷叶螟在不同抗性大豆品种上的产卵选择性,结果显示豆卷叶螟在感虫品种上的产卵量显著多于在抗虫品种上的产卵量。
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Positive significant correlation between three infection indexes and SDD, and negative insignificant correlation between infection indexes and LIP were found. Fifteen sugarcane varieties could be divided into 6 groups on the basis of the distance more than 1.0. It resulted most ot tested sugarcane varieties had similar smut resistance. It suggested that smut race 1 and race 2 were included in inocula and the condition for Ustilago scitaminea infection was suitable in the crop season by setting up the standard varieties of NCo310, F134, NCo376 and Ya71-374 for smut identification. In addition, the results of sugarcane varieties resistant to smut race 1 and race2 were known by only a simple field trial.
结果显示:9个引进甘蔗品种中,ROC26属于感病品种,其余属于抗病或高抗品种;3个病情指数和持续发病期的两两相关均为显著正相关,潜伏侵染期与这些参数的相关为负相关,但未达到显著水平;在类间距离大于1.0的条件下,可将15个品种聚为6类,进一步明确了各品种抗黑穗病性的相似程度;抗性鉴定标准对照种NCo310、F134、NCo376和Ya71-374的应用,明确了接种源为小种1和小种2,通过一次接种试验,明确了供试品种对2个小种的抗性水平,标准对照种的抗性表现,还说明了本生长季发病条件基本是适宜的。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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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。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力