帽瓣

Objective To evaluate the advantage and applications of pedicled galeal flap in head and neck region.

摘 要：目的了解以颞浅血管为蒂的帽状腱膜瓣在头颈部肿瘤术后缺损中的修复作用。

Methods A consecutive series of 17 patients underwent surgical reconstruction with pedicled galeal flaps after head and neck tumor resection.

对近2年半内所做的连续17例带蒂帽状腱膜瓣修复头颈肿瘤术后缺损进行初步评价。

Swing check valves should be used one kind of screws or bolts to connect the valve cap for inspection and repair of disc and seat.

旋启式止回阀应该选用一种螺丝或螺栓连接的阀帽，以便检查和修理阀瓣和阀座。

Removable seat preference should be given, because they are easy maintenance, and easy to replace the valve seals Swing check valves should be used one kind of screws or bolts to connect the valve cap for inspection and repair of disc and seat.

可拆卸的阀座应优先选用，因为它们容易维修，而且便于更换阀中的密封件旋启式止回阀应该选用一种螺丝或螺栓连接的阀帽，以便检查和修理阀瓣和阀座。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。