threshing tool for one ear中文什么意思

小型单穗脱粒设备

• thresh:    vt.,vi. ＝ thrash. ...
• tool:    n. 1.工具，用具，器具；【机械工 ...
• one:     Once one is ...
• ear:    n. 1.(稻麦等的)穗。 2.〔p ...