hydrodynamic drag meaning in English

动水拖曳力
水动力阻力

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。