abalakov threadの例文
- Abalakov thread can only be constructed in solid ice.
- An Abalakov thread can be constructed using an ice screw, of appropriate strength cord, and hook-like Abalakov threading device.
- Though the Abalakov thread is considered to be as strong as any ice screw placement, a backup ice screw is frequently used for the first abseil.
- This allows for increased safety if mistakes were made in the creation of the Abalakov thread, and allows the strength of the thread to be observed.
- Abalakov is credited with such inventions as camming devices in the 1930s, Abalakov thread ( or V-thread ) gearless ice climbing anchor, and many other climbing equipment innovations.