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。

youdao

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。

youdao

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。

youdao

This is a two-step procedure, starting with the naming of official suspects, which requires relatively little evidence, before progressing to a formal indictment if more conclusively damning evidence is found.

ECONOMIST: The McCann case