standard sample

短语词组

短语

• standard d sample 标准样品
• Make Standard Material Sample 材料样板
• standard wastewater sample 标准水样
• spectral standard -sample 光谱标准样品
• standard core sample 标准芯样
• standard cotton sample 标准棉样
• standard cluster sample survey 标准组群抽样法
• standard coal sample 标准煤样
• plant standard reference sample 植物样品
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