At three sample sites, a 5 cm diameter sediment core was taken with a PVC cylinder to determine nutrient content.
在三个样本的网站，一个直径5厘米的核心是泥沙与聚氯乙烯缸，以确定养分含量。
To take samples that retain the larger structure of the sediment, a core sampler is used.
为了保持样品沉积物的层次结构，就要用空心铁管采样器。
Researchers found the same telltale signature of drought in a deep-sea sediment core drilled from the Gulf of Oman.
研究人员在从阿曼海湾的深海沉积物中钻取的岩芯中发现了同样能说明问题的旱灾的迹象。
Trough the study of the vertical distribution characteristics of organochlorine pesticides in the sediment core, the pollution history of organochlorine pesticides in Quanzhou Bay was discussed.
通过研究有机氯农药在沉积物柱样中的垂直分布特征，探讨了有机氯农药在泉州湾的污染历史。
To take samples that retain the larger structure of the sediment, a core sampler is. used.
为了保持样品沉积物的层次结构，就要用空心铁管采样器。
The measurement and principle of ultrasonic measurement of sediment core are introduced.
介绍了沉积物柱状样超声透射法测量方法和原理。
The depth profile of above nuclides in sediment core and its oceanographic significance were studied.
对岩心中各个核素的深度分布特征及其所蕴含的海洋学意义进行了研究。
The organic carbon contents, compositions and distributions of various biomarker compounds were examined in leg NS90-103 of marine sediment core from chinese Nansha sea areas.
研究了南沙海域NS90—103柱样有机碳含量、各类生物标志化合物的组成和分布及其地球化学意义。
The organic carbon contents, compositions and distributions of various biomarker compounds were examined in leg NS90-103 of marine sediment core from chinese Nansha sea areas.
研究了南沙海域NS90—103柱样有机碳含量、各类生物标志化合物的组成和分布及其地球化学意义。
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