These tumors may be sessile or pedunculated . 这些息肉无蒂或带蒂。
2.
A sessile leaf has no petiole . 无柄的叶没有叶柄。
3.
Both sessile and floating types are known but most of the geologically important types were floating colonies . 固着的和浮游的两种类型都已发现，但大部分在地质上重要的类型都是浮游群体。
4.
On colonoscopy , a sessile polyp is seen below 结肠镜检查，在下边可见一个无蒂的息肉。
5.
Firstly , the wettability of ni on ti ( c , n ) based ceramic multiphase was researched by sessile drop method 首先，采用座滴法研究了金属ni对ti ( c ， n )基多元陶瓷相的润湿性。
6.
Sessile unstalked , for example an acorn , leaf , flower , or other organ that is attached to the main body of the plant 无柄的：无茎的，例如：橡树果、树叶、花朵或其他连接在植物体主干的结构。
7.
Coastal zones are important habitats to fauna , having a primary production for offering such as benthos and sessile organisms 摘要沿岸海域一直是生物重要的栖地，并且提供像底栖生物或附著生物相当高的基础生产。
8.
To understand the relationships between the benthos , sessile organisms and the constructions of artificial shallow water zone , the performance of the benthic index of biotic integrity ( b - ibi ) was used to analysis the ecological status 结果显示： ( 1 )底栖生物及附著生物皆可反映海岸浅滩生态环境的生态现况，适合作为生物指标。
9.
Leaves crowded near apex of the trunk , spirally arranged ; stipes dark brown , with sharp spines ; lamina large , oblong , tripinnate ; pinnae 17 - 20 pairs , alternate , longest one to 60 cm long , the basal one reduced ; rachis short - spiny ; pinnules 18 - 20 pairs , sessile or nearly so , lanceolate , to 10 cm long and 2 . 5 cm wide , divided almost to the costa ; segments more or less falcate , toothed 叶螺旋状排列，聚生于茎端；叶柄棕色，具锐刺；叶片大，长矩圆形，三回羽状深裂；羽片17 - 20对，互生，最大的长达60厘米，基部一对缩短，羽轴有短刺；小羽片18 - 20对，无柄或近于无柄，披针形，长达10厘米，宽2 . 5厘米，深裂几达中脉；末回裂片多少镰状，有齿。
10.
Flowers solitary and terminal , white , 10 - 14 cm in diam . , sessile ; bracts and sepals leathery , orbicular , covered with grayish silky hairs outside ; petals 8 , broadly obovate , 5 - 7 cm long , glabrous , basal 1 . 5 cm connate ; stamens in many whorls , 2 . 5 cm long , distinct , glabrous ; ovary hairy , 5 - locular , styles 2 cm long , apex 5 - lobed 花白色，单生于枝顶，直径10 - 14厘米，无柄；苞片及萼片圆形，革质，外被灰色绢毛；花瓣8 ，阔倒卵形，长5 - 7厘米，无毛，基部连生约1 . 5厘米；雄蕊多轮，长2 . 5厘米，离生，无毛；子房有毛， 5室，花柱长2厘米，先端5浅裂。
