查询词典 unit of area
- 与 unit of area 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Result The dust-retention amounts per unit area and the dust-retention amounts per plant of different tree species had bigger difference. Among trees, the dust-retention abilities of Ligustrum lucidum, Platycladus orientalis, Cedrus deodare, Platanus hispauiea anti Spohora japonica were stronger. Among shrubs, the dust-retention abilities of Viburnum odoratissimum, Pittosporum tobira, Euonymus japonicus and Lagerstroemia indica were stronger.
结果]不同树种的单位面积滞尘量、单株树木滞尘量均存在较大差异,乔木中,以女贞、侧柏、雪松、悬铃木和国槐的滞尘能力较强;灌木中,以珊瑚树、海桐、大叶黄杨和紫薇等的滞尘能力较强。
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The cost of the saved energy correlated to an equivalent electric energy is greater than the expense at the corresponding increase in collector surface area implying an annual benefit per unit colling capacity of about 18-30
本文中的热驱动系统是一个太阳能集热器子系统,考虑到吸收式制冷机热源进出口温差约30℃的具体情况而作了相应优化。
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AFM images revealed that as the sputtering time was prolonged, the film thickness increased, the film became compacter, and the specific area of the film also increased, thus, the release rate of silver ions increased, which led to improved antibacterial properties. EDX test results indicated that increase in film thickness led to increase in silver weight percentage per unit surface, causing improved antibacterial properties. Moreover, when the film thickness was 1 nm, the inhibition percentage of Staphylococcus aureus and Escherichia coli were 100%.
结果表明:随着薄膜厚度的增大,样品抗菌性能提高;溅射时间延长,薄膜厚度增大,膜层的致密性改善,单位面积上的银含量增加,膜层表面积增大,银离子释放几率增大,是提高抗菌性能的主要原因;当纳米结构银薄膜厚度为1 nm时,对大肠杆菌和金黄色葡萄球菌的抑菌率均达到100%。
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Through the multiple comparisons, the production, single-potato weight, number of tubers per plant, per unit area of main stem number, plant height, the rate of commodity potato, or diseased plant rate, diseasedness index of the use of small whole potato seeds were better than that of the traditional cuts planting, but analysis of variance revealed that differences between the two was not significant.
多重比较表明,无论是产量、单薯重量、单株块茎数、单位面积主茎数、株高、商品薯率,还是病株率、病指,利用小整薯播种均优于传统的切块播种,但通过方差分析发现,二者之间差异不显著。
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The integrative ability, organizing ability, communicative ability of trainings was deficiency. Fourthly, the power of social physical educators in Guangxi universities was so weak that it couldn't satisfy the need of specialty development. For example, the number of special teacher and the practicing ability of teachers are deficiency. The teachers that master special theoretic well and have practicing experience are deficiency especially. Fifthly, social physical practice base have not been building in Guangxi universities. And the necessary equipments of gymnasium are deficiency at the same time. Sixthly, the whole sports technology levels of new social physical students are low and hard to fit for social needing. Seventhly, the professional ideology of students is not stable enough. For example, the special concept and cognition of students are dim. The attitude for learning is not right. The most of students want to or have trend to change their profession after graduating. Eighthly, the ability of students fostered by social physical education in various Guangxi universities has a gap with the ability that students should hold for adapting the need of Guangxi employer. The special technical levels of social physical students are weak. Ninthly, in investigation of social physical personnel being demanded by Guangxi area employers, we found that few social physical personnels were demanded by business unit, the state-operated factory and mining enterprise because of being influenced by economical environment. And the more social physical personnels were demanded by social physical directors, fitness centers and each kind of sports association and so on.
这主要表现为:不够科学的课程体系,在实践性教学环节中的重视程度不够,对学生的综合能力、组织管理能力、社会交际能力的培养较为欠缺;4、对社会体育专业的发展需求这一点而言,广西各高校该专业的师资力量还略显薄弱,难以满足社会的需求,主要体现在:缺乏足够的专业教师数量、教师实践能力欠强,尤其缺乏既有较高理论素养又有实践经验的教师;5、社会体育专业的实习基地在广西各高校中都尚未建立起来,同时一些必备的体育场馆的设施也较为缺乏;6、由于入学时广西社会体育专业的学生在运动技术、技能整体水平相对较低,因此在一些专业方向的需求上难以达到满足;7、在专业思想这一方面而言,广西各高校社会体育专业的学生显得不够稳定,主要表现为:淡薄的学生专业观念,模糊的专业认识,不够端正的学习态度,甚至有相当一部分学生准备毕业后改行或有改行倾向;8、广西各高校社会体育专业培养学生目前所具备的能力与当前广西用人单位所需求的社会体育专业人才应具备的能力尚有一定差距,主要体现在:目前社会体育专业学生的专业技术水平较低,组织能力和社会交际能力较为欠缺等。9、在广西地区用人单位对社会体育专业人才需求量的调查中发现:大多数的企事业单位和国营厂矿企业因受到经济大环境的影响,基本上都不设置专职的体育管理人员,对社会体育专门人才的需求量较少,需求量较大的还是社区体育指导员、体育健身中心、各种体育协会等。
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First, rape breed innovation must be strengthened , which can reduce die content of glucosinolate and erucic acid of rape breed and thus improve the per unit area yield and oil content of rape.
人世后我国油菜产业参与国际竞争的主要形式是通过发展我国油菜生产以减少对国外油菜及制品的进口。
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The unit discharge of auditory neuron in the cortical AⅠ area was recorded with the extracellularly recording method. The character of ON-OFF responses induced by short pure tone and the influence of stimulating lateral amygdaloid nucleus on these responses and the tuning curves of the recorded neurons were examined.
在30只氨基甲酸乙酯麻醉的SD大鼠上记录神经元单位放电,观察短纯音诱发的皮层AⅠ区神经元ON-OFF反应的特性及电刺激杏仁外侧核(lateral amygdaloid nucleus, LA)对ON-OFF反应以及调谐曲线的影响。
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This typical water logging land distributes in the slope farmland of black soil fragmentarily, which unit area was about 10~900a and the resistance of soil to drought and logging was weak.
尿炕地单块面积约0.67~60hm~2,零星分布在大面积的黑土坡耕地中,总面积约占耕地总面积的4%,其耕层土壤抗干旱和抗涝渍的缓冲能力均较低。
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Degradation test in vitro was carried out in phosphate buffer solution (0.1M, pH7. 4) at 37 ℃. The buffer solution was changed daily. Degradation test in vivo was implanted the sample to subdermal in adult ICH rat in the scapular area lateral to the dorsal midline. At suitable time the samples were recovered. Molecular weight changes in surface layer and bulk of polymer sample were measured by GPC and weight loss was determined gravimetrically. It was found that the degradation behavior can be regulated by changing the composition of copolymers. The critical compositions from surface to bulk degradation behavior for PGCA, PLCA, PLMCA, PLDCA systems were 15-20, 20-30, 30- 40, 40 of mol percent GA or LA unit in copolymers, respectively. The degradation behavior of PGCA, PLCA, PLMCA, PLDCA systems were compared and analysed. Some factors influencing the degradation character, such as copolymer composition, hydrophobicity, crystallinity and enzyme affect etc. played important role.
体外实验中材料降解环境为37℃,0.1M,pH7.4磷酸缓冲溶液,每天换液,定期取样;体内实验中将聚合物试样埋置于ICH小白鼠背部肩胛骨皮下部位,定期处死小鼠,取样,将体内体外样品进行重量损失及试样内外层分子量变化测定,分析各聚合物试样降解行为特性,实验结果证明,改变共聚物组成,可以调节各聚合体系降解行为特性,对PGCA,PLCA,PLMCA,PLDCA共聚体系,交酯摩尔百分含量15-20%,20-30%,30-40%,40%分别为各体系内降解行为特性由表面降解型向本体降解型过渡的临界转折点,交酯含量较低的聚合物不同程度地表现表面降解行为特性,论文对各共聚体系体内外降解行为作了分析对照,例如共聚物组成对材料降解速度与降解行为的影响;生物体内酶对降解行为的影响;材料亲疏水性,聚合物链段结晶行为及碳酸酯结构对材料降解行为的影响等,得出交酯/环碳酸酯共聚体系降解行为一些共性和规律。
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The results show that the active loss of heteropolyacid catalyst are mainly attributed to the reduction of surface area, coke formation, and reduction of acid strength during the long term of operation for isoamylene unit. The improvement aspects of the catalyst performance for the decomposition of TAME are proposed.
结果表明,在长周期运行中,催化剂比表面下降、结焦和酸性的损失是导致催化剂活性降低的主要原因,最后提出了TAME裂解催化剂的改进方向。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。