四尖的

The experimental comparisons and researches to p-type silicon cone and wedge arrays coated by four kinds of metals with same structures are done, and show that the gold and aluminum will be hopeful cathode materials of field emission devices which operate at low vacuum and atmospheric pressure.

对结构相同的覆四种不同金属层（Au，Al，Ni，Cr）的p型硅尖锥和楔形体阵列进行了实验比较研究，表明金、铝可望成为低真空和大气压环境下工作的场发射器件的阴极材料。

Stamens inserted in throat; filaments short, bases broad, connate, upper part narrow, free; anthers adnate to stigma head, apex acuminate, exserted; pollen tetrads in loose masses, 2 in each anther cell and fixed on 1 common retinaculum.

雄蕊着生于喉；花丝短，宽，合生的基部，狭窄的上半部分，离生；花药贴生于柱头头状花序，先端渐尖，外露；在松散的群众，每花药室2里的四合花粉和决定1普通retinaculum。

The effect of treatment content of MDA with rhizobium alone is always higher than that of CK at different growth stages in tobacco root ,stem and leaf cells, and rhizobium could induce activity of SOD and content of soluble protein to increase in the first and the second week.

在实验中，我们测定了以上四种处理对不同发育周期烟草不同组织来源的超氧化物歧化酶的活性，丙二醛，可溶性蛋白和叶绿素含量以及根尖细胞染色体的影响。

Under the red symbolic revolution, on flag's five five pointed stars and the reciprocity symbolize the Communist Party of China to lead the revolutionary people great solidarity; The star is for appears with the yellow on the red bottom the light, the yellow compares the white brightly beautiful; Four small five pointed stars have a point to treat the big star central point respectively, indicated that revolves a center to unite, US: The flag surface top left-hand corner for the blue color star area, in the area altogether has 9 row of 50 white five pointed stars, by row of 6, row of 5 interlocks.

红色象征革命，旗上的五颗五角星及相互关系象征中国共产党领导下的革命人民大团结；星用黄色是为着在红底上显出光明，黄色较白色明亮美丽；四颗小五角星各有一尖正对着大星的中心点，表示围绕着一个中心而团结，美国：旗面左上角为蓝色星区，区内共有9排50颗白色五角星，以一排6颗、一排5颗交错。

Stems 15-80 cm tall, somewhat 4-angled, with (2 or)4 raised strigillose lines on internodes; leaves oblong, oblong-ovate, or elliptic, apex obtuse or rarely acute; petals 5.5-13 mm; fruiting pedicels 1-2.5 cm.

15-80厘米高的茎，有点四棱形，有具短糙伏毛线关于；叶长圆形，长圆状卵形，或椭圆形，先端钝的或很少锐尖；花瓣5.5-13毫米；果梗1-2.5 厘米 20 E。

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

Villosum to wheat using ph lb mutant, as well as the development, identification and cytogenetic characteristics of a trigeneric hybrid germplasm with useful genes from Tavestivum, D.villosum and S.cereale.

结果发现：仅在50μg/mlBrdu溶液20～21h的培养条件下，9.3％的黑麦根尖细胞染色体产生脆性位点表达，主要分布在三条黑麦染色体的四个不同位点上，频率分别为1.4％、2.1％、4.3％和5.7％。

The bug-eyed RA-7 droid in the Weequay bar squawks an alien gibberish very similar to what the "Death Star Droid" in the sandcrawler says to R2-D2 in Star Wars: Episode IV A New Hope.

威奎人酒吧里那个尖着声音说异族语的暴眼机器人RA-7，与《星球大战：第四集-新希望》里，那个在沙地履带车上和R2-D2说话的&死星机器人&十分相似。

This paper presents a new analytic approach to synthesize the spherical four-bar mechanisms with two prescribed coupler curve cusps, and to analyze the motion type of the generated mechanisms.

本文提出一新的解析法来合成具两特定尖点耦杆点曲线之球面四杆机构，并详加讨论所合成出之机构的运动型态。

Walking on all fours allowed animals to carry more weight, and size was often their only defense against sharp-toothed carnivores, said one of the report's co-authors, Matthew Bonnan of Western Illinois University.

该报告的共同作者西伊利诺大学马修巴南说，以四脚行走可让动物更可携重，而身体大小往往是它们对尖齿肉食动物唯一的防御。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。