| 2021 10 | | 2021 - 2023 | | | 2021 254 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GB / T 700 | GB / T 4956 | | GB / T 3091 - 2015 | | GB / T 6728 | GB / T 13793 | GB / T 13912 | | | GB / T 233 393 | GB 50018 - 2016 | | GB / T 51057 | GB / T 5183 - 2016 | | NY / T 1145 | | NY / T 1420 | | NY / T 2134 | | NY / T 3024 | NY / T 3223 | | GB / T 23393 - 2009 | | | plastic tunnel | | | 8 m 2.8 m | | solar greenhouse | | | | | | ridge height | | a 1 | skeleton spacing | b | 1 | span | | c 1 | | | | | | | | | | 0.5 m | | | | | | | 8 m | 12 m 1 m | | 2.8 m | 4.5 m 0.2 m | | | 1.5 m | 1 m | | 1 | | | | | GB/T 51183 - 2016 | | | 2 | | | | 10 | | | 4 h | | | | | | | | | | | - 25℃ | 8℃ | 5℃ | | 5.3.1 | | | GB/T 700 | | GB/T 13793 | | | 5.3.2 | 1 | | 5 | 5.3.3 | | | 5.3.4 | | | | 5.3.5 | | | 5.3.6 | | | | | | 1 GB/T 13793 | C | 300 g / m 2 | 2 | GB/T 3091 - 2015 | | 300 g / m 2 | | | 3 GB/T 6728 - 2017 | | 200 g / m 2 | | 5.4.1 | | | | | 5.4.2 | 2 m | 2 m | 5.4.3 | NY/T 1145 NY/T 2134 | | 5.4.4 GB | 50018 | | 5.4.5 | GB/T 51057 | | 5.4.6 | NY/T 3223 NY/T 2134 | | NY/T 3024 | | 5.4.7 1.5 m | 2.5 m | 5.4.8 | | | | | | | | | | | | | | | | | | | | | | | | | | | GB/T 4956 | | | | | | | | | | | | | | | 3 | | | | | | | | | | ± 30 mm ± 20 | mm ± 40 mm | | 7.7 | NY/T 1420 | | | | | 1 | | | | 2 | 2.1 (I) | | | | | | | 2.2 (Ⅱ) |
| | | | | | | 2.3 (Ⅲ) |
| | | | | | 2.4 (Ⅳ) |
| | | | | | | | 3 | | 1000m | 1000m | 100m 0.1° | | | | | 4 | | | | | | GB/T 51183 - 2016 |