Shrimp-like decapod crustacean having two pairs of pincers ; most are edible .
形似虾的十足甲壳动物，有两对钳子；大多数可食用。
Once every few decades , a scientist plucks the cylinder from its perch with chamois-leather-padded pincers , rubs its surface with a cloth soaked in alcohol and ether , and steam-cleans it .
