由于弹簧活塞与螺帽相夹，备用锯条不会在L形管内窜动，便于在流动场地使用操作。
Because the spring pistons and the nuts are clamped, the spare saw blades can not flee in the L-shaped pipe, which is convenient to operate in a mobile field.
由于弹簧活塞与螺帽相夹，备用锯条不会在L形管内窜动，便于在流动场地使用操作。
Because the spring pistons and the nuts are clamped, the spare saw blades can not flee in the L-shaped pipe, which is convenient to operate in a mobile field.
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