大类

词组短语

broad heading

与大类相关的网络例句 [注：此内容来源于网络，仅供参考]

A: bookbiding with microtensile approximately150, source, or more or less extensive, there are several categories of animal husbandry, starch base class, qula class, natural resin, celluolse and artificial synthetic resin, etc.

答：装订用黏结材料种类很多，来源极为广泛，大致有以下几大类，即动物类、淀粉基类、干酪素类、天然树脂类、纤维素类和人工合成树脂等。

In the whole world, the large ring lactone class antibiotic is a clinical commonly used variety, with the cephalosporin, partly synthesized the blue mildew and the fluorine kui alkone has formed the antibiotic three-way confrontation. in 2006 the global best-selling medicine 500 strong anti-infection class medicine quantities have reached 77, is 19 broad heading medicines resides in the first place the variety.

在全球，大环内酯类抗生素是一个临床常用的品种，与头孢菌素、半合成青霉和氟喹诺酮形成了抗生素的鼎足之势。2006年全球畅销药500强中的抗感染类药物数量已达77个，是19大类药物居于首位的品种。

That indicated the availability of SRAP technique in studying genetic variability in Arachis. Estimates of genetic distance among the 28 accessions Arachis section ranged from 0.12 to 0.75 with average genetic distance of 0.42. A genetic distance clarified that A-genome A. duranensis was most closely associated with tetraploid germplasm, which could be A-genome donors. Dendrogram of cluster analysis classified 28 accessions Arachis section into two groups: one including tetraploid germplasm, and A.

聚类分析表明，28份花生材料间的遗传距离变幅为0.12~0.75，平均为0.42，A基因组物种Arachis duranensis与栽培种花生的亲缘关系最近，可能是栽培种花生的A基因组的供体。28份种质分为两大类，第一大类包含四倍体种质及A基因组的A。

Based on the principle of Otsu method with maximum variance between threshold algorithm of image segmentation, an improved method derived from Otsu algorithm is put forward, which combines interclass distance with intraclass distance, a partial recursive algorithm is used to search optimum threshold.

基于最大类间方差阈值图像分割算法的基本原理，然后结合目标与背景两类之间间距和类内距离对图像分割效果的影响，提出了一种改进的最大类间方差法，运用递归思想局部搜索图像的最佳阈值。

Finally, fusion decision is adopted to get the final result of face recognition based on the intermediate result of every class.

摘要该文提出了基于层次模型和融合决策的多姿态人脸识别技术，它首先把各人脸按姿态分成几个大类，并且对各大类按人脸个体分成相应子类，然后对各个大类分别进行基于特征脸的人脸识别，最后对各个姿态的人脸识别中间结果进行融合决策得到真正的人脸识别结果，该算法同时也提供了其姿态识别结果，并且大大减小了耗时，该文算法对ORL，UMIST，Stirling数据和一些自拍数据共1200幅人脸图像进行了识别测试实验，其结果令人鼓舞。

AFLP marker technique was used to investigate the genetic relationships between 50 accessions of maize and its wild relatives including teosinte, Tripsacum and Coix With twenty one AFLP primer combinations of PstⅠ/MseⅠ, 641 AFLP amplified bands were obtained, including 586 polymorphic bands with an average of 30 52 per primer combination and the polymorphism percentage of 91 4% Cluster analysis using UPGMA method based on the data of AFLP showed that the 50 materials could be divided into...

用AFLP分子标记技术对 5 0个有代表性的玉米及其野生近缘种大刍草、摩擦禾、薏苡材料进行了遗传关系分析。利用 2 1个PstⅠ MseⅠ引物组合检出可辨认带共 6 4 1条，其中多态性带 5 86条，平均每对引物得到 30 5 2条多态性带，多态性 91 4 %。聚类分析结果表明，可以将 5 0个材料分为 3大类，与已有的玉米族分类一致，但与玉蜀黍属内的种间和种内分类存在差异，说明大刍草各种内存在较大的遗传多样性。本实验发现玉蜀黍属与摩擦禾关系比与薏苡的关系更近，但并没有发现玉米与小颖玉米亚种比与其他大刍草的遗传关系更近。

Seedlings operating more than 800 species, mainly breeding necessary to promote various types of garden landscaping to protect two species of the country, and a variety of new Coleus excellent tree species, street trees, flowering shrubs, trees, color categories, Hedge category, ornamental bamboo , flowers, bonsai category, flower category Lei, Flacourtia category by category, type of lawn, flower holiday, such as a total of 23 major categories of nursery stock range and constantly introduce new varieties and products to adapt to many northern and western climate cold, nicotinic soil, soil drought and other adverse natural environment, so best-selling nursery stock throughout the country, such as Beijing, Shanghai, Anhui, Guangdong, Hebei, Shandong, Ningxia, Gansu, Qinghai, Shaanxi, Shanxi, Sichuan, Inner Mongolia, Dalian, Heilongjiang and other places.

经营苗木品种达800余个，主要繁育推广各类园林造景必需的国家二级保护树种，以及各类新优彩叶树种、行道树、花灌木、乔木、色块类、绿篱类、观赏竹类、花卉盆景类、花篱类、刺篱类、地被类、草坪类、节日草花等共达23大类，苗木品种齐全且不断推出新品种，产品多适应北方、西部气候寒冷、烟碱性土壤，土质干旱等恶劣的自然环境，所以苗木畅销全国各地，如北京、上海、安徽、广东、河北、山东、宁夏、甘肃，青海，陕西，山西，四川，内蒙，大连，黑龙江等地。

The main selling varieties are: Trees category, type of flowering shrubs, tree type, color categories, hedge type, ornamental bamboo, bonsai type flowers, flower Lei category Flacourtia category by category, type of lawn grass, flower festivals, such as total 23 major categories of more than 800 species, nursery stock, and has introduced a comprehensive range of new varieties, products, and more adapted to the northern, western cold climate, soil salinization, soil drought and other adverse natural environment, so best-selling nursery stock throughout the country.

国腾花卉苗木园艺场于2003年在宿迁市沭阳县工商局合法认证注册，注册资金480万元，主要是借助我们沭阳&中国花木之乡&40万亩苗木集产区的优势，致力于抗盐碱耐干旱苗木及彩叶新品种的推广以及各类园林造景必需的国家二级保护树种。主要品种有：行道树类、花灌木类、乔木类、色块类、绿篱类、观赏竹类、花卉盆景类、花篱类、刺篱类、地被类、草坪草种类、节日草花等共达23大类800余种，苗木品种齐全且不断推出新品种，产品多适应北方、西部气候寒冷、盐碱性土壤，土质干旱等恶劣的自然环境，所以苗木畅销全国各地。

Explosion-proof tools produced include the following major categories: A, hand chain hoist, pulley , table vice, sleeve and attachment type B, a variety of wrenches, pipe clamp type, such as plum blossom wrench stay, percussion wrench C, hammer type, such as Sledge Hammer, hammer nipple, hammer D, sub-soil knife, knife derusting , flat spade type, down-type E, crowbar-type F, pliers, scissors type, such as Dramix clamp, clamp Lei G, screwdriver-type H, the top, listening to the needle-type I, to pumps, buckets, Rama and other sundry goods J, portfolio suite tools and explosion-proof hand chain hoist is a national patent product, patent No.

公司生产的防爆工具包括以下几大类：A、手拉葫芦、滑车、台虎钳、套筒及附件类 B、各种扳手、管钳类，如梅花呆扳手、敲击扳手C、锤子类，如八角锤、奶头锤、榔头 D、泥子刀、除锈刀、扁铲类、挫类 E、撬棍类 F、钳子、剪刀类，如克丝钳、鲤鱼钳 G、螺丝刀类 H、顶尖、听针类 I、提油泵、水桶、拉马等杂品 J、组合套装工具类，且防爆手拉葫芦是国家专利产品，专利号为：

According to data of moxa luck survey, dress shoe cap kind commodity began to exceed the amount such as mobile phone, jotter 2007 kind commodity, become a net to buy trade the merchandise category with the largest amount. Cleaned out rank of treasure sales volume to show first half of the year 2008, dress kind commodity is resided firmly still the first, contributed to clean out treasure of near 15% trade quantity, become a net to buy the biggest kind of commodity. In May 2008, relevant section mails to using express delivery, package the canal of article accuses to strengthen.

根据艾瑞调研数据，服装鞋帽类商品2007年开始超过手机、笔记本等数码类商品，成为网购交易量最大的商品品类。2008年上半年淘宝销量排名显示，服饰类商品仍然稳居第一，为淘宝贡献了将近15%的交易量，成为网购第一大类商品。2008年5月，相关部门对用特快专递、包裹邮寄物品的管控加强。

与大类相关的网络解释 [注：此内容来源于网络，仅供参考]

Major defects：次要瑕疵、大类

Minor defects 普通瑕疵、中类 | Major defects次要瑕疵、大类 | Super major defects 主要瑕疵、特大类

Major defects：次要瑕疵,大类

Minor defects 普通瑕疵,中类 | Major defects次要瑕疵,大类 | Super major defects 主要瑕疵,特大类

genera：大类

大块钻屑 massive drilling cuttings | 大类 genera | 大理石 marble

marsupial：有袋类

哺乳类动物可以分为两大类,一是胎生类(Placental),一是有袋类 (Marsupial),就化石研究的记录,有袋类先於胎生类动物出现在地球上,在七千万到一万万年以前,有袋类动物遍布地球上各地,表示当时地球是连成一块陆地,在以后的几百万年内,

sealed class：密封类

大类之间的关系杂乱无章,对类的理解和使用都会变得十分困难. 有时候,我们并不希望自己编写的类被继承. 另一些时候,有的类已经没有再被继承的必要. C#提出了一个密封类(sealed class)的概念,帮助开发人员来解决这一问题.

subclass：亚类

国际系统分类法根据所催化反应类型,将酶分为氧化还原酶类(oxidoreductases)、转移酶类(transferases)、水解酶类(hydrolases)、裂合酶类(lyases)、异构酶类(isomerases)及连接酶类(ligases)等6大类,并在每一大类之下,又分为若干亚类(subclass)及亚亚类(subs

Turma Saccites Erdtman：有囊类

具腔单缝孢亚类Subturma Cavatomonoletes Oshurkova et Pashkevich,1990 | 化石花粉大类Anteturma Pollenites Potonié,1931 | 有囊类Turma Saccites Erdtman,1947

flavones：黄酮类化合物

面粉中主要含有黄色素(Yellow pigment)、棕色素(Brown pigment)和黄酮类化合物(Flavones). 面粉中的黄色素为类胡萝卜素(Carotenoids),根据其化学结构分为两大类,一类是胡萝卜素(Carotenes),占10%;另一类是胡萝卜素的含氧衍生物,

lipids：类脂

脂类分为两大类,即脂肪(fat)和类脂(lipids)蜡(waxes)是不溶于水的固体,是高级脂肪酸和长链一羟基脂醇所形成的酯,或者是高级脂肪酸甾醇所形成的酯. 常见有真蜡、固醇蜡等. 复合脂质(complx lipids)即含有其他化学基团的脂肪酸酯,

carotenoids：类胡萝卜素

研究也发现,只有含氧功能基(如羟基、酰基、酮基等)的类 胡萝卜素(carotenoids)类在畜、禽、水产品内才有着色效果. 这类类胡萝卜素包括:叶黄素、番茄红素和玉米黄素等几大类. 饲料中的类胡萝卜素都是以棕油酸二酯的形式存 在.