TCVN 6643-2000 Soil quality Determination of nitrate nitrogen ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant《土质 使用氯化钙溶液.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

HG T 5030-2016 硫化钴钼用催化剂化学成分分析方法.pdf

HG T 5031-2016 常温活性炭载碱脱硫剂硫容试验方法.pdf

HG T 5032-2016 活性炭载碱脱硫剂化学成分分析方法.pdf

HG T 5033-2016 铂系苯加氢制环己烷催化剂活性试验方法.pdf

HG T 5034-2016 铂系苯加氢制环己烷催化剂化学成分分析方法.pdf

HG T 5035-2016 硝基苯加氢制苯胺催化剂催化性能试验方法.pdf

HG T 5036-2016 常温有机硫转化吸收催化剂催化性能试验方法.pdf

HG T 5037-2016 甲醇制氢催化剂活性试验方法.pdf

HG T 5038-2016 雷尼镍催化剂化学成分分析方法.pdf