The proper cutting of weeds with a Chinese-made bush cutter in a field with dense trees (P3a)

The proper cutting of weeds with a Chinese-made bush cutter in a field with dense trees so as not to injure the trunks.
The cutting is done by an brush cutter operator with 30 years of experience in European and USA made machines of this kind.
The weeds were dense and quite tall. Sometimes wrapped on the head of the bush cutter.
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Cleaning of weeds wrapping on the head of a bush cutter, finger injury.:
(https://youtu.be/gcNpOByVeWI)
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The proper cutting of weeds with a Chinese-made bush cutter in a field with dense trees (P2):
(https://youtu.be/tfQac6BquFU)
The proper cutting of weeds with a Chinese-made bush cutter in a field with dense trees:
(https://youtu.be/mlt_CqEtxkc )
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Cutting weeds with a Chinese-made bush cutter (P1):
(https://youtu.be/7O9Pl_5BNzc)
Cutting weeds with a lawn mower, overturning compost pile and finger injury (P2):
(https://youtu.be/7ECTkTRBUQc)
Cutting weeds with a lawn mower, overturning compost pile and finger injury (P1): (https://youtu.be/vZUIIHNq_5k)
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1st cutting of weeds with a lawn mower (P1):
(https://youtu.be/ZZ2E9NHMQLA)
Cutting of weeds outside with a lawn mower (P2):
(https://youtu.be/6NnVdPcjCxA)
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The 8th Overturning of the Compost into a pile (F1):
(https://youtu.be/ccLAtAMc7w8)