NY T 3520-2019 菠萝种苗繁育技术规程.pdf

相关资源

DB62 T 689-2000 临夏牡丹栽培技术规程.pdf

DB62 T 820-2002 定西地区无公害农产品 专用型马铃薯生产技术规程.pdf

DB62 T 836-2002 兰州市无公害蔬菜生产技术规程 番茄.pdf

DB62 T 837-2002 兰州市无公害蔬菜生产技术规程 辣椒.pdf

DB62 T 838-2002 兰州市无公害蔬菜生产技术规程 黄瓜.pdf

DB62 T 637-1999 桑蚕纸板方格簇上簇技术规程.pdf

DB62 T 638-1999 桑蚕丝茧育防病消毒技术规程.pdf

DB62 T 996-2003 白银市A及绿色食品生产技术规程 双孢菇.pdf

JT T 1037-2016 公路桥梁结构安全监测系统技术规程.pdf

猜你喜欢

NASA-TM-X-3437-1977 Side forces on a tangent ogive forebody with a fineness ratio of 3 5 at high angles of attack and Mach numbers from 0 1 to 0 7《在高攻角且马赫数为0 1至0 7时 纯度比率为3 5的切线尖拱形前.pdf

NASA-TM-X-3438-1977 Side forces on forebodies at high angles of attack and Mach numbers from 0 1 to 0 7 two tangent ogives paraboloid and cone《在高攻角且马赫数为0 1至0 7时飞机前体的侧向力 两个切线尖拱形抛面线和.pdf

NASA-TM-X-35-1960 Effects of vertical-tail size and a ventral fin on the static lateral and directional stability derivatives of a 0 048-scale model of a horizontal-attitude VTOL a.pdf

NASA-TM-X-39-1959 Dynamic Longitudinal and Directional Stability Derivatives for a 45 deg Sweptback-Wing Airplane Model at Transonic Speeds《在跨音速下 45后掠翼飞机模型的动态纵向和航向稳定性导数》.pdf

NASA-TM-X-56023-1974 Drag reduction obtained by rounding vertical corners on a box-shaped ground vehicle《通过在盒状陆上车辆上将垂直边角制圆获得的阻力下降》.pdf

NASA-TM-X-71903-1976 A theoretical study of the acoustic impedance of orifices in the presence of a steady grazing flow《在有稳定擦过流量时的孔口声阻抗理论研究》.pdf

NASA-TM-X-72695-1975 The effect of chine tires on nose gear water-spray characteristics of a twin engine airplane《脊骨轮胎对双发动机飞机前起落架喷水特性的影响》.pdf

NASA-TM-X-72797-1975 Evaluation of high pressure water blast with rotating spray bar for removing paint and rubber deposits from airport runways and review of runway slipperiness p.pdf

NASA-TM-X-72805-1976 Traction Characteristics of a 30 x 11 5-14 5 Type VIII Aircraft Tire on Dry Wet and Flooded Surfaces《30x11 5-14 5 VIII类型飞机轮胎在干燥 湿润和淹没表面上的牵引特性》.pdf