| 1. | Aisc american institute of steel construction 美国钢结构学会 |
| 2. | American institute of steel construction 美国钢构协会 |
| 3. | In accordance with the above captioned letter of credit requirements , we hereby certify that the above captioned shipment consists of new material and was manufactured in accordance with american buildings company quality control procedures as certified by the metal building manufacturers association and the american institute of steel construction 根据上述题词信用证的要求,我们特证明上述项下货物是采用新材料并按美国建筑公司质量控制程序制造的,并得到金属厂房制造商协会和美国钢铁建筑研究院的认可。 |
| 4. | L / c no . : lc61393001 american buildings no . : 51 - 4744 dear sir / madam : in accordance with the above captioned letter of credit requirements , we hereby certify that the above captioned shipment consists of new material and was manufactured in accordance with american buildings company quality control procedures as certified by the metal building manufactures association and the american institute of steel construction 根据上述题词信用证的要求,我们特证明上述项下货物是采用新材料并按美国建筑公司质量控制程序制造的,并得到金属厂房制造商协会和美国钢建筑研究院的认可。 |
| 5. | American buildings no . : 51 - 4744 dear sir / madam : in accordance with the above captioned letter of credit requirements , we hereby certify that the above captioned shipment consists of new material and was manufactured in accordance with american buildings company quality control procedures as certified by the metal building manufactures association and the american institute of steel construction 根据上述题词信用证的要求,我们特证明上述项下货物是采用新材料并按美国建筑公司质量控制程序制造的,并得到金属厂房制造商协会和美国钢建筑研究院的认可。 |
| 6. | In accordance with the above captioned letter of credit requirements , we hereby certify that the above captioned shipment consists of new material and was manufactured in accordance with american buildings company quality control procedures as certified by the metal building manufactures association and the american institute of steel construction 根据上述题词信用证的要求,我们特证明上述项下货物是采用新材料并按美国建筑公司质量控制程序制造的,并得到金属厂房制造商协会和美国钢建筑研究院的认可。 |
| 7. | In accordance with the above captioned letter of credit requirements , we hereby certify that the above captioned shipment consists of new material and was manufactured in accordance with american buildings company quality control procedures as certified by the metal building manufactures association and the american institute of steel construction 根据上述题词信用证的要求,我们特证明上述项下货物是采用新材料并按美国建筑公司质量控制程序制造的,并得到金属厂房制造商协会和美国钢建筑研究院的认可。 |
| 8. | In contrast with the finite element specialized program , the result indicate that our method is not only simple , practical , but also in calculation precision , especially structure displacement calculation precision , is superior to the steel design series 14 of american institute of steel construction 与错列桁架有限元专业程序的对比计算结果表明,本文方法不但具有简单、实用的优点,而且在计算精度上,特别是结构位移计算精度上,要明显优于美国aisc协会设计指南的方法。 |