例文
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- The rails were kept in place by lug bolts that were anchored in concrete.
- The 1 / 2 ton 4 x 4 retained the 6 lug bolt pattern.
- DuBiel rifles were constructed using only patented DuBiel actions which feature a five lug bolt locking mechanism resulting in a 36 degree bolt rotation.
- The safety offered by its three-lug bolt and the added reliability of controlled feed ( especially favored by dangerous game hunters ) are considerable refinements not found in other designs.
- Both are bolt-action, rotating bolt rifles, with dual-lug bolts and integral, non-detachable magazines, and both are available in left-handed models.
