Evaluation of sampling methods for iron ores - experimental methods for checking the bias of sampling 铁矿石取样方法评定.第3部分:检查取样偏差的实验方法
2.
Evaluation of sampling methods for iron ores - experimental methods for checking the precision of sampling 铁矿石取样方法评定.第2部分:检查取样精度的实验方法
3.
Drop in sterilized medicine regularly . keep the blower in constant working . check the quality of the sample of the constant to compare with the standards 定期投药。保持鼓风机连续工作。检查取样的质量并与标准的相比较。
4.
B : they are the " regulations on working conditions and requests on taking samples for doping control " and the " regulations on taking samples for doping control " issued by the anti - doping commission of the chinese olympic committee 依据中国奥委会反兴奋剂委员会发布的《兴奋剂检查取样的工作条例和要求细则》和《兴奋剂取样细则》 。
