The device is simple in structure and convenient in use as a relatively ideal auxiliary appliance for fishing.
结构简单、使用方便，是一种较为理想的钓鱼用辅助器具。
The sample and sample sleeve ejecting device is simple in structure and convenient to use with obvious effect.
本实用新型结构简单，使 用方便，效果明显。
This device is simple in structure, complete in function, reliable enough in performance and convenient in use.
该设备结构简单、功能齐全、性能可靠、使用方便；
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