很可能是条大马林鱼,或者剑鱼,或者鲨鱼.It could have been a marlin or a broadbill or a shark.剑鱼受伤后, 会跳出水面,身子不断摆动.The swordfish, when wounded, jump out of the water and thrash about....
The wastewater samples is transmitted by an air - operated aspirator to the liquid injection valve.用气动吸引器将废水试样送入液体注射阀.The machine is supply with widia cutter, anti accident system and dust aspirator.该机器配有宽扫刀 、 安全防护装置和吸尘器...