蝶阀结构简单、体积小、重量轻，只由少数几个零件组成。
Butterfly simple structure, small size, light weight, only by a small number of parts.
最简单的方法就是换轻一点的板机弹簧(13号零件)。
One easy way to improve these triggers is to lighten the trigger Spring (Part 13).
维护简单—气体增压器的零件及密封少，维护简单且成本低。
Simple maintenance - gas supercharger part and sealing less, simple maintenance and low cost.
蝶阀结构简单、体积小、重量轻，只由少数几个零件组成。
Butterfly simple structure, small size, light weight, only by a few parts.
作为另个例子，我们可以试想一下简单的飞机零件数据库。
As another example, consider a simplified airplane spare parts database.
作为另个例子，我们可以试想一下简单的飞机零件数据库。
As another example, consider a simplified airplane spare parts database.
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