板式转换阀

cribriform plate of sclera【解剖】;lamina cribrosa sclerae【解剖】

copper plate press【印刷】;gravure press【印刷】;gravure printing machine【印刷】

laminated bus plate

frontal plate

astronegative【天】;astronomical plate【天】;astrophotogram【天】

perforated-plate distillation column

gusset piece【建】;gusset plate【建】;joint bar【铁路】

spread plate cultivation