Glossary entry (derived from question below)
English term or phrase:
averages of boards over quite long time period
English answer:
reflect the average results observed in boards after analyzing large quantities over quite a long time period.
Added to glossary by
airmailrpl
Apr 11, 2004 07:11
20 yrs ago
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English term
Canada
Conference interpreter, MBA, ATIO, ATA
Native in: Chinese 
Works in: Chinese to English, English to Chinese, Russian to Chinese, and 8 more.
averages of boards over quite long time period
English
Tech/Engineering
Forestry / Wood / Timber
Lumber
The context is as follows:
Visual grading of lumber for structural applications uses the size of knots and their location along with other factors such as slope of grain, shake, splits, unsound wood and wane to assign an individual board to a grade category. The grade categories are based on the average influence of these knots and other characteristics in terms of the strength of the boards in that grade category. Physical small batch sample testing is used to verify the actual strengths.
Overall the visual lumber grading systems are qualitative and reflect averages of boards over quite long time period.
Wood from a particular species or species group will vary in actual strength depending on the tree characteristics, genetic variations and climatic and growing conditions.
Question: How to interpret the meaning of 'averages of boards over quite long time period'? Does it mean that the boards have been felled and dried for a long time or does it mean that the empirical estimation of board grades?
Visual grading of lumber for structural applications uses the size of knots and their location along with other factors such as slope of grain, shake, splits, unsound wood and wane to assign an individual board to a grade category. The grade categories are based on the average influence of these knots and other characteristics in terms of the strength of the boards in that grade category. Physical small batch sample testing is used to verify the actual strengths.
Overall the visual lumber grading systems are qualitative and reflect averages of boards over quite long time period.
Wood from a particular species or species group will vary in actual strength depending on the tree characteristics, genetic variations and climatic and growing conditions.
Question: How to interpret the meaning of 'averages of boards over quite long time period'? Does it mean that the boards have been felled and dried for a long time or does it mean that the empirical estimation of board grades?
Responses
7 hrs
airmailrpl
Brazil
Brazil
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&
English
Works in field
Brazil
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Native in: English (Variant: US) , Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English, English, and 1 more.
Related KudoZ points
:
12
Selected
reflect the average results observed in boards after analyzing large quantities over quite a long...
reflect averages of boards over quite (a) long time period.
reflect the average results observed in boards after analyzing large quantities over quite a long time period.
reflect the average results observed in boards after analyzing large quantities over quite a long time period.
4 KudoZ points awarded for this answer.
Comment: "Thank you very much"
+6
1 hr
the typical/normal quality of boards...
Undoubtedly it refers to the empirical estimation of board grades.
Peer comment(s):
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perke
42 mins
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Vicky Papaprodromou
1 hr
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DGK T-I
: averages made using different individual board samples taken at different times(over a period).Presume all come from same location,species,etc.
1 hr
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Hacene
: yes, let's say a piece of oak is used for a given purpose because of this wood averages and uses through time, and it is reflected in the visual system
2 hrs
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David Moore (X)
3 hrs
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Ray Luo
4 hrs
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6 hrs
analysis includes data gathered over time
the first paragraph explains how lumber is graded visually; grade categories are assigned using knots among other factors. These factors are averaged in order to estimate strength. Samples are tested to verify strengths assigned to any given category.
Board is one piece of lumber; these recorded (strength) averages are collected and the data is statistically examined over time.
Perhaps this is to avoid influences of seasonal rainfalls, for example.
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Note added at 7 hrs 1 min (2004-04-11 14:13:01 GMT)
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Confidence Intervals for Predicting Lumber Strength Properties Based on Ratios of Percentiles ... of these ratios were originally established by analysis of mean ...
www.fpl.fs.fed.us/documnts/fplrp/fplrp606.pdf
Board is one piece of lumber; these recorded (strength) averages are collected and the data is statistically examined over time.
Perhaps this is to avoid influences of seasonal rainfalls, for example.
--------------------------------------------------
Note added at 7 hrs 1 min (2004-04-11 14:13:01 GMT)
--------------------------------------------------
Confidence Intervals for Predicting Lumber Strength Properties Based on Ratios of Percentiles ... of these ratios were originally established by analysis of mean ...
www.fpl.fs.fed.us/documnts/fplrp/fplrp606.pdf
Discussion