【机械工程】预热用回热器的排布【机械工程；】加热；武器；爆破，燃气，为预热配置的蓄热器装置

circuit arrangement for light sources not otherwise provided for

deflecting plate, rebound nozzle arrangement

arrangement for the disposal of refuse

watering arrangement with perforated pipe-line located above the soil

selecting arrangement radio link, inductive link

arrangement of air supply devices in muffle furnaces

fan arrangement for driers (fans in range for driers )

marginal relief arrangement【税收】