Glossary entry (derived from question below)
Russian term or phrase:
ферма теплицы (vs. каркас)
English translation:
greenhouse truss
Russian term
Ukraine
Quality Translations for Quality Clients
Native in: Russian 
, Ukrainian
Works in: Russian to English, English to Russian, English to Ukrainian, and 6 more.
ферма теплицы (vs. каркас)
Базовый комплект каркаса...
TIA!
| 3 | greenhouse truss |
Turdimurod Rakhmanov
|
| 5 | Greenhouse structure |
Magamed Aslanov
|
| 3 | greenhouse rafter |
Frank Szmulowicz, Ph. D.
|
Jul 18, 2020 14:09: Turdimurod Rakhmanov Created KOG entry
Proposed translations
Kyrgyzstan
Education, Legal, Technical & Medical
Native in: Uzbek (Variants: Tashkent, Ferghana valley, Samarkand-Bukhara, Khorezm) 
, Kirghiz
Works in: English to Uzbek, English to Kirghiz, English to Kazakh, and 26 more.
greenhouse truss
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Note added at 7 mins (2020-07-17 13:35:57 GMT)
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http://www.uk-gardening.co.uk/greenhouse/greenhouse-5.html
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Note added at 9 mins (2020-07-17 13:37:10 GMT)
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Installation of 2 pieces of 2 "X 4" truss to solidify the structure.
Georgia
English to Russian/Aze
Native in: Azerbaijani (Variant: Standard) , Russian (Variants: Standard-Russia, Standard-Georgia)
Works in: English to Russian
Greenhouse structure
The structure is the frame of the greenhouse, consisting of columns, beams, straps, etc. that support the roof, wind, rain, snow, devices that are installed and overload trellising plants, etc.
Commercial greenhouse structures are mainly clustered into gutter connected, free standing quonset and single gable.
https://aggie-horticulture.tamu.edu/ornamental/greenhouse-management/greenhouse-structures/
United States
On time, on target, on budget.
Native in: English , Polish
Works in: Polish to English, English to Polish, Russian to Polish, and 1 more.
greenhouse rafter
http://igcusa.com/catalogs/CPC%20Install.pdf
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Note added at 2 hrs (2020-07-17 16:01:30 GMT)
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• Rafter spacing: 6'. Sidewall height: 6'.
https://www.growerssupply.com/farm/supplies/prod1;;pg50030gh...
Discussion
The greenhouse framework supports the greenhouse covering material.
http://www.aquasol.org/uploads/7/0/7/0/70700977/greenhouse_c...
The roof structure itself can be a truss if it has horizontal joists
https://unhappyhipsters.com/wp-content/uploads/2019/06/truss...
or it can be just rafters.
https://unhappyhipsters.com/wp-content/uploads/2019/06/rafte...
1 – 4 pieces of 2×4 – 120”, 12 pieces of 2×4 – 60″ SIDE WALLS
2 – 2 pieces of 2×4 – 65″, 3 pieces of 2×4 – 60″ BACK FACE
3 – 12 pieces of 2×4 lumber – 51″ (both ends cut at 45º) RAFTERS
4 – 2 piece of 2×4 – 64″, 2 pieces of 2×4 – 80″, 1 piece of 2×4 – 25″ FRONT FACE
5 – 2 pieces of 2×4 – 69 1/2”, 2 pieces – 25″, 1 piece – 18″ DOOR
https://gardenplansfree.com/wp-content/uploads/2012/12/Build...
Учитывая конкретный контекст от Юрия, а именно, цитирую: "Конструкция ферм позволяет равномерно распределять снеговую нагрузку и повышает устойчивость всего каркаса теплицы.", к данному термину в контексте базового комплекта каркаса подходит клучевое английское слово "structure"!
Мне бело бы весьма интересно услышать контекстное токования других участников этого Кудоз вопроса.
Let the winner take it!