The cover body is provided with a plurality of clamp blocks. The switch sliding sheet comprises a main body part and a convex arm.
一连接片，其包括一主体及由主体两侧向下弯折的滑片；
Try to clamp these two blocks of wood together.
试着把这两块木头夹在一起。
The utility model can sow irregular seed blocks, without hurt or clamp on the seed blocks.
它具有可播种不规则种块，且 播种时种块不存在破损或被卡滞的优点。
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