挡头 dǎngtou [obstacle] 指起阻碍作用的事物
球形挡头和锥形入口模结构较好。
The structures of ball stopper and taper entry din are better.
球形挡头和锥形入口模结构较好。试验结果与理论分析基本一致。
The structures of ball stopper and taper entry din are better. Experimental results are consistent with the the…
“我们逮到了一个，”他悄声对自己的搭挡说。他的搭挡立刻猛冲到巷子的另一头，堵住目标的出口。
'We've got one,' he whispers to his partner, who bolts to block off the other end of the street.
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