Home / Standards / GB/T 33705-2017 GB/T 33705-2017 Active Soil moisture observation—Frequency domain reflection method 土壤水分观测 频域反射法 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2017-05-12 Implementation 2017-12-01 Responsible Dept 中国气象局 Drafting Unit N/A