The correlation between frequency variations of enzyme bands and tree height, DBH and volume was very small. Only B45 band came up to or closed significant level.

酶带频率变异与树高、胸径、材积生长相关性很小，只有B _(45)酶带与生长相关达到或近于显著水平。

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This year, four people have been killed after livestock accidents, three have died after falling from a height, two where machinery was involved, one from drowing and one in a tree-felling accident.

BBC: Concern over rise in Northern Ireland farm deaths

The tree, which is usually 20 to 25 m (70 ft) in height and anything between 50 and 60 years old, is then shipped free-of-charge across the North Sea to Immingham by DFDS Tor Line.

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