The sample collection standard is a two-step procedure that is performed after an initial risk assessment is conducted and a visible powder is deemed a credible biological threat.
样品收集标准主要包括两大步骤，初始风险评估和可见粉末确定为生物威胁。
Puts forward a solution finding method of two-dimensional dynamic planning, using step-by step procedure to reduce dimension in solution finding.
提出了一种二维动态规划求解方法，在求解时用逐次逼近法降维。
Purpose to establish the preparation procedure of human prothrombin complex concentrate (PCC) by using two-step gel chromatography to obtain high purity and high security product.
目的应用两步凝胶色谱法制备高纯度、高安全性的人凝血酶原复合物(PCC)制剂。
Fetal lymphocyte inhibitory factors (FLIF) are prepared by means of the successive two-step salting-out procedure using ammonium sulphate.
本文用二步分段盐析法，制备了胎儿淋巴细胞抑制因子(FLIF)。
The green silver colloid and yellow silver colloid were prepared by two?step photochemical procedure and UV photochemical procedure respectively.
研究了不同光源、光照时间、反应物浓度等对绿色银胶形成的影响 ，分别制备了绿色银胶和黄色银胶 。
The green silver colloid and yellow silver colloid were prepared by two?step photochemical procedure and UV photochemical procedure respectively.
研究了不同光源、光照时间、反应物浓度等对绿色银胶形成的影响 ，分别制备了绿色银胶和黄色银胶 。
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