二是运动部位受到卡滞或发动机突然加重负荷。
The second is moving parts by card sluggish or engine suddenly aggravating the load.
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。
The utility model can sow irregular seed blocks, without hurt or clamp on the seed blocks.
底板前缘的凸台既加强了底板的强度，且在送纸时不会产生卡滞现象，使用可靠。
The convex platform at the front edge of the base-plate not only enhances the strength of the base-plate, but avoids clamping stagnation in the process of feeding paper, which is reliable.
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