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- The various mineralized types of main vein gold deposits in China are cited. 列举我国主要岩金矿床各种矿化类型实例。
- In leaves of Liriodendroideae, some of abaxial epidermal cells are papillose and the vascular tissue of the main vein appeared to be separated. 鹅掌楸亚科和木兰亚科在叶结构上的主要区别是 :鹅掌楸亚科两种植物叶的部分下表皮细胞乳突状 ,且整个细胞外壁只形成一个乳突 ,而在木兰亚科植物中有单列多细胞或单细胞的表皮毛 ,却未发现乳突 ;
- Leaf blade abaxially not hairy, or pilose on main veins. 不有毛的叶片背面，或具柔毛在主脉上。
- Results showed when the roots soaked in the iron fertilizer liquid, the Fe2+ translocated along the xylem near cambium in roots, branches and main vein of leaves, but the distribution of iron in roots was few. 根、、和主脉内运输部位都是靠近形成层的木质部，绝大部分铁运往地上部，根系分布很少。
- The mechanical tissue flakily situated in the downside of the main vein and the bigger lateral veins. 机械组织成片存在于主脉和较大侧脉靠下表皮侧。
- Structure of the secondary main vein 次级主脉的结构
- BIG FOOT AND MAIN VEIN BLOOD, NERVE MODEL 大腿骨与主静脉血管和神经模型
- Leaves parallel veined, without clear, transverse venation between main veins; filaments not forming a ring. 平行脉的叶，没有清楚，在主脉之间的横向脉序；花丝不形成一枚戒指。(21
- Leaves 3, in a terminal whorl, sessile or shortly petiolate, rhombic-orbicular to ovate, with 3 or 5 main veins and anastomosing veinlets. 叶3，在一顶生轮生，无梗或具短叶柄，菱形圆形到卵形，具3或5主脉和网结的细脉。
- Pancreatic acini and pancreatic islets distribute around main veins, acinar cells being stained into navy blue are closely arranged. 胰腺腺泡和胰岛分布于肝脏内大静脉周围，腺泡细胞染色深蓝色。
- Leaf blade lanceolate to oblong-lanceolate, thinly leathery; main veins 3, obviously concave adaxially. Peduncle subequaling petiole. 叶片披针形披针形到长圆形，薄革质；主脉3，显而易见凹。花序梗近相等的叶柄。
- Leaves 4 to many, very rarely 3, in a terminal whorl, petiolate, lanceolate to ovate, with 3 main veins and anastomosing veinlets. 叶4到多数，极少3，在里一顶端轮生，具叶柄，披针形到卵形，具3主脉和网结细脉。
- The leaves of Mg deficient plants (left) become pale yellow-green except for the dark green tissue around the main veins (cv.Annette Hegg). 下部叶片脉间黄化;焦枯.;缺镁植株叶片(左)淡黄绿色除主脉周围组织保持深绿色
- Older leaves pale with faint diffuse, interveinal chlorosis mainly in marginal areas and along main veins, sometimes absent in spite of development of “marsh spot”. 缺锰的豌豆：老叶叶色变淡并轻微扩散，脉间从叶缘开始失绿，向主脉扩展，有时由于湿斑病的发展而不显现缺素症。
- Stem, branches and inflorescence glabrous. Leaf blade abaxially papillose-puberulent especially on main veins, apex subcuspidate-acuminate. Female flowers: staminodes 6. 茎，分枝和花序。叶片背面乳头状微柔毛特别在上主脉，先端渐尖。雌花：退化雄蕊6。
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- Crowds thronged the main square of the city. 城里的大广场上挤满了人群。
- The whole school (was) assembled in the main hall. 全校在大礼堂集合。
- The main feature on the program is her song. 那个节目的主要号召物是她的歌。
- A main longitudinal vein in a leaf. 叶片上主要的纵脉。
