Soft or hard quality and arrangement of the objects does n ' t affect velocity of flow and erosion 加糙体的软硬性质及分布形式的不同对流速及冲刷的影响不大。
The discharge capacity decrease and the water level rise as the floodplains " roughness increase 随着滩地糙率的增加，滩地的过流能力降低，沿程水位随之抬高。
Both the tide and the increase of floodplains " roughness can change the diffluence ratio between northern and southern branch 外海潮波和滩地糙率的变化可以影响南北两汊河道的分流比。
A test analysis of open canal bottom coefficient of roughness anticlimax on turbulent velocity of flow and intensity of turbulence influence 明渠渠底糙率突减对紊流流速及紊动强度影响的试验分析
Scaberulus , which belong to phalanx decreases in population density because of competition between the two varieties with different clonal growth 微糙变种的一些2x细胞型居群属密集型，而宽伞变种6x细胞型属游击型。
With combining optimization method , an optimal model of determining synthetic surface roughness coefficient in film hole irrigation was developed 实例计算与方法验证表明，该方法能够简单而有效地确定膜孔灌溉田面综合糙率系数。
Description : evergreen trees , up to 25 m high ; twigs , buds , petioles , abaxial surfaces of leaves and peduncles covered with yellowish brown rigid hairs 形态特徵：常绿乔木，高达25米；小枝、芽、叶柄、叶背和花梗均被黄棕色糙伏毛。
( 3 ) hydraulic resistance coefficient formulas are derived according to a great number of flume experiments and relative theory analysis ( 3 )通过系列水槽试验和相关理论分析，提出了十字片梅花加糙的有效水深和水力阻力系数计算公式。
A piece of rough paper is stuck on the side of the box , and when a match is rubbed against it , friction heats the head of the match , making it burst into flame 在火柴盒的边上贴上张糙纸，当火柴与其相擦时，摩擦使火柴的头发热，使其燃烧起来。
