为了保证蚕种质量,提出了家蚕微粒子病母蛾抽样检查的五次抽样方案。
In order to guarantee the quality of silkworms eggs, multiple sampling plan is put forward about the sampling inspection of pebrine for mother moth in the silkworm.
讨论了计数标准型一次抽样检验方案的设计方法及原理。
Design method and principle of a standard sampling inspection plan by counting are discussed.
揭示了一次挑选型抽样方案SSPS与连续型抽样方案CSP-1的内在联系。
This paper reveals the internal relation between the single sampling plan with screening (SSPS) and the continuous sampling plan(CSP- 1 ).
方法根据全国第四次结核病流行病学抽样调查方案,采用分层整群随机抽样方法抽取调查点,然后根据调查结果进行分析。
Methods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey.
方法根据全国第四次结核病流行病学抽样调查方案,采用分层整群随机抽样方法抽取调查点,然后根据调查结果进行分析。
Methods According with the methods of the forth epidemiologic sampling survey for tuberculosis in our country, the method of stratified cluster random sampling was use in this survey.
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