□
□ □
[□]
" Lightning cannot be prevented ; it can only be intercepted or diverted to a path that will , if well designed and constructed , not result in damage ... The addition of properly designed and constructed water control structures to a subsurface drainage system allows the drainage outlet to be artificially set at any level between the ground surface and the drain depth ( see Figure 1b . The building was also designed and constructed with a number of other features to improve the indoor environment , including operable windows and ventilation rate control based on indoor carbon dioxide levels . Credit Union Administration Board recognizes the benefits of sale-and-leaseback transactions when they are properly arranged and constructed . All the well-known and successful forms of engine , when equally well designed and constructed and equally well managed , are of very nearly equal efficiency ; all of the best-known types of steam boiler , where given equal proportions of grate to heating-surface and equally well designed , with a view to securing a good draught and a good circulation of water , have been found to give very nearly equally good results ; and it has become evident that a good knowledge of principles and of practice , on the part of the designer , the constructor , and the manager of the boiler , is essential in the endeavor to achieve economical success ; that good engineering is demanded , rather than great ingenuity . Electrical and non electrical equipment and installations in potentially explosive atmospheres must be specially designed and constructed so that the risks of ignition are eliminated or reduced . Both asphalt and concrete pavements can provide safe , durable , and low-noise surfaces when properly designed and constructed . If properly designed and constructed , the material can function successfully as embankment material .