NEN-EN 148-3-1992 Respiratory protective devices Threads for facepieces Thread connection M 45x3《呼吸装置 螺丝 拉紧螺杆M 45 x 3》.pdf

相关资源

IRS 70778-2-2018 Recommendations for determining the carrying capacity and fatigue risks of existing metallic railway bridges.pdf

IRS 70712-2018 Rail defects.pdf

IRS 50596-6-2018 Conditions for coding intermodal loading units in combined transport combined transport lines and wagons.pdf

IRS 50596-5-2018 Transport of road vehicles on wagons-Technical Organisation-Conveyance of semi-trailers with P coding or N coding on recess wagons.pdf

IESNA TM-23-2017 Lighting Control Protocols.pdf

IESNA RP-2-2017 Recommended Practice for Retail Lighting.pdf

ITU-R RAPPORT M 766-2 FRENCH-1990 Feasibility of frequency sharing between the GPS and other services《全球定位系统和其他服务之间的频率共享的可行性》.pdf

ITU-R RAPPORT M 763-3 FRENCH-1990 Signal level variation due to multipath effects and blockage by ship-s superstructure in maritime mobile-satellite service lin.pdf

ITU-R RAPPORT M 739-1 FRENCH-1986 Interference due to intermodulation products in the land mobile service between 25 and 100 MHz《由于互调产物在陆地移动服务25和100 MHz之间产生的干扰》.pdf

ITU-R RAPPORT M 319-7 FRENCH-1990 Characteristics of equipment and principles governing the assignment of frequency channels between 25 and 100 MHz for land mob.pdf

猜你喜欢

NASA NACA-TN-763-1940 Wind-tunnel investigation of two airfoils with 25-percent-chord Gwinn and plain flaps《带有25%弦的Gwinn和普通襟翼两个机翼的风洞研究》.pdf

NASA NACA-TN-766-1940 A study of the air movements in two aircraft-engine cylinders《对两个飞机发动机汽缸中空气流动的研究》.pdf

NASA NACA-TN-775-1940 Analysis of wind-tunnel data on directional stability and control《方向稳定性和控制风洞数据的分析》.pdf

NASA NACA-TN-776-1940 The aileron as an aid to recovery from the spin《作为恢复旋转帮助的副翼》.pdf

NASA NACA-TN-778-1940 Notes on the stalling of vertical tail surfaces and on fin design《关于垂直尾翼面失速和翼片设计的注释》.pdf

NASA NACA-TN-801-1941 Tests of round and flat spoilers on a tapered wing in the NACA 19-foot pressure wind tunnel《在NACA 19 ft高压风洞中锥形机翼圆形和平坦扰流板的试验》.pdf

NASA NACA-TN-808-1941 Wind-tunnel investigation of an NACA 23012 airfoil with several arrangements of slotted flaps with extended lips《带有伸出唇形开缝襟翼多种形式的NACA 23012机翼的风洞研究》.pdf

NASA NACA-TN-823-1941 Plate method of ground representation for wind-tunnel determination of elevator effectiveness in landing《着陆电梯有效性风洞测定的地面表示板方法》.pdf

NASA NACA-TN-825-1941 Wind-tunnel investigation of effect of yaw on lateral-stability characteristics III - symmetrically tapered wing at various positions on circular fuselage wit.pdf