DB31 T 693.3-2020 蔬菜工厂化育苗技术规程 第3部分：茄果类.pdf

相关资源

DB31 T 693.2-2020 蔬菜工厂化育苗技术规程 第2部分：瓜类.pdf

DB21 T 3852.1-2023 蔬菜工厂化育苗技术规程 第1部分：总则.pdf

DB21 T 3852.2-2024 蔬菜工厂化育苗技术规程 第2部分：病虫害防控.pdf

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

猜你喜欢

NASA NACA-RM-A9F16-1949 A comparison of two submerged inlets at subsonic and transonic speeds《在亚音速和跨音速时两个嵌入式进气道的对比》.pdf

NASA NACA-RM-E50D05-1950 Experimental investigation of supersonic flow with detached shock waves for Mach numbers between 1 8 and 2 9《在马赫数为1 8至2 9时 带有脱体激波的超音速流动的实验研究》.pdf

NASA NACA-RM-E50H23-1950 Correlation of forced-convection heat-transfer data for air flowing in smooth platinum tube with long-approach entrance at high surface and inlet-air tempe.pdf

NASA NACA-RM-E51A25-1951 Investigation of altitude ignition acceleration and steady-state operation with single combustor of J47 turbojet engine《带有J47涡轮喷气发动机的单一燃烧器高度点火 加速和稳态操作的研究》.pdf

NASA NACA-RM-E51C06-1951 Aerodynamic characteristics of four bodies of revolution showing some effects of afterbody shape and fineness ratio at free-stream Mach numbers from 1 50 t.pdf

NASA NACA-RM-E51H13-1951 Aerodynamics of slender bodies at Mach number of 3 12 and Reynolds numbers from 2 x 10(exp 6) to 15 x 10(exp 6) I - body of revolution with near-parabolic .pdf

NASA NACA-RM-E51J23-1951 Generalization of turbojet and turbine-propeller engine performance in windmilling condition《在螺旋桨自转情况下涡轮喷气飞机和涡轮螺旋桨发动机的性能概括》.pdf

NASA NACA-RM-E51L26-1954 Some observations of shock-induced turbulent separation on supersonic diffusers《对超音速扩散器上振动诱导湍流分离的一些观察结果》.pdf

NASA NACA-RM-E52H15-1952 Pressure limits of flame propagation of pure hydrocarbon-air mixtures at reduced pressure《在对比压力下纯碳氢气体混合物火焰传播的压力限制》.pdf