水流阻力 meaning in Chinese
drag
flow resistance
resistance to water-flow
Examples
- Variation of hydraulic resistances in red soil - crop - air continuums in different farming systems in dry season
干旱季节不同耕作制度下红壤?魑?大气连续体水流阻力变化规律 - The tension force , shear forces ( including pushing force , cutting force and friction force ) , impulse force , hydrodynamic drag on the suction pipes , and the force resulted from the pressure difference , etc , are the main forces for detail discussion in this paper
详细讨论了主要作用力：在波浪补偿器作用下的缆绳拉力、耙头与海床间的土壤剪切力、作用在耙吸管上的水流阻力及由于压力差在耙头处产生的推动力等。 - Character : it is interweaved by high - quality terylene vole and terlene silk . inner lining is pvc material , which has a low price , and good character of aging proof , water proof , low resistance , quick pulling . soft convenient and long using life , etc , it is a new product , which can take the place of rubber inner lining in some fields
特点：采用优质涤纶纱和高强涤（丙）纶丝为原料，经平纹织机环编交织而成，内衬优质pvc材料，物美价廉，具有耐压，不渗水,水流阻力小，出水快，特别轻便柔软，使用寿命长等特点，是一种新型产品，在部分领域可代替橡胶衬里水带。 - The main contents are as follows : ( l ) through theoretic analysis and flume experiments , the characteristic of water resistance through frames is researched , and transforms relation between resistance coefficients and manning ' s roughness coefficients is established , and then experiential formula of manning ' s roughness coefficients is fitted
主要研究内容如下： ( 1 )通过理论分析和水槽试验，研究了穿越四面体框架群水流阻力系数的变化规律，建立了阻力系数与框架群等效曼宁糙率系数的转换关系，拟合出了糙率的经验计算公式。