选择 青虾 标准查询与下载
共找到 150 条与 选择 青虾 相关的标准，共 10 页
Technical specifications for parent selection and breeding of freshwater shrimp
SELECTING ASPHALT CEMENTS
1.1 This practice covers the selection of cutback asphalts of the slow, medium and rapid curing types for various paving and allied uses
Standard Practice for Selection of Cutback Asphalts
This practice defines various types of bituminous paving construction for which cutback asphalt may be used. In addition
Standard Practice for Selection of Cutback Asphalts
1.1 This practice covers the selection of cutback asphalts of the slow, medium, and rapid curing types for various paving and allied uses. Slow-curing
Standard Practice for Selection of Cutback Asphalts
本标准规定了青虾[日本沼虾 Macrobranchium nipponense (de Haan)]亲本质量的种质、选择等要求。 本标准适用于青虾的良种亲本选择
Quality requirements for freshwater shrimp parents
Selection Techniques of the Second Generation Excellent Trees of Picea spruce in Qinghai
本标准规定了水稻—青虾共作技术的环境条件、田间工程、水稻种植、青虾养殖和收获的相关技术要求。 本标准适用于杭州地区的单季稻田的水稻-青虾共作模式
Technical specifications for rice-shrimp co-cropping
1.1 This practice covers the selection of cutback asphalts of the slow, medium, and rapid curing types for various paving and allied uses. Slow-curing
Standard Practice for Selection of Cutback Asphalts
This practice defines various types of bituminous paving construction for which cutback asphalt may be used. In addition, it delineates the types
Standard Practice for Selection of Cutback Asphalts
Pollution-free food prawns
因地方标准信息公布不透明，地方标准有效性更新或有延迟，望大家理解。本标准规定了青海云杉（Picea crassifolia Kom）优树选择的标准。本标准适用于青海云杉高世代种子园营建的二代用材优树选择
Qinghai spruce second-generation excellent tree selection technical regulations
As indicated by Specifications D 977 and D 2397
Standard Practice for Selection and Use of Emulsified Asphalts
4 环境条件与设施设备 4.1 环境条件 靠近水源，水量充足，水质清新，养殖环境符合NY/T 5361的规定。 水源水质应符合GB 11607的规定。 4.2 虾池条件 虾池宜为长方形，东西向长，塘堤坚固，防漏性能好。土质宜为
Technical specifications for aquaculture of oriental river prawn
4 环境条件与配套设备 4.1 环境条件 靠近水源，水量充足，养殖环境符合NY/T 5361的规定。 水源水质符合GB 11607的规定。 4.2 池塘条件 培育池宜为长方形，东西向长，塘堤坚固，防漏性能好。土质宜为壤土或黏土，池底较平坦
Technical specifications for breeding of oriental river prawn
