1)  bottomsampler,bottom-sampling device
底质取样器
2)  sediment
底质
1.
Organicenrichment actuality and evaluate of the sediment in Changhu Lake;
长湖底质有机物富集现状及评价
2.
Effects of sediments nutrition condition on the growth and the photosynthesis of Hydrilla verticillata;
底质营养状况对黑藻生长及光合作用的影响
3.
Exploration of Measuring Genetic Toxicity Method of Water Quality and Sediment in Daqing Region's Trench;
大庆地区主要排水干渠水质和底质遗传生物毒性测试的探索
3)  sediments
底质
1.
Studies on the distribution of perpendicularity pollution of Cu element of sediments in Wucheng section of Ganjiang River;
赣江吴城段底质Cu元素垂直污染分布研究
2.
Spectroscopy Characterization of Humic Acids from the Sediments in Natural Waters;
天然水体底质中腐植酸的光谱表征
3.
Effects of different water depths and sediments on Potamogeton malaianus in Lake Taihu;
不同水深和底质对太湖马来眼子菜(Potamogeton malaianus)生长的影响
4)  sediment quality
底质
1.
Investigation on sediment quality of the river mouths around Bohai Bay;
环渤海湾诸河口底质现状的调查研究
2.
Water quality and sediment quality of waters near shanghai sewage outfalls;
上海污水排放口水域水质和底质分析
5)  substrate
底质
1.
The effect of substrate on growth of Penaeus japonicus juvenile;
底质对日本对虾幼虾生长的影响
2.
With single-factor test,the substrate preference of juvenile Chinese sturgeon Acipenser sinensis captured from Yangtze River estuary was examined in laboratory.
2cm)、小砾石(直径1～2cm)、中砾石(直径4～5cm)、大砾石(直径13～15cm)4种底质类型的选择。
3.
The experiments on juveniles selection of different substrates reveal that 92.
提出一些高产措施：如优选亲蚶；高密度来卵再分地洗卵、孵化，高密度培育面盘幼虫；无“底质”采集眼点幼虫，细砂（含极少量泥质和有机质）底质培育稚蚶，加大投饵量和换水量；严格防病等。
6)  lake surface sediments
湖泊底质
1.
Residues of PCBs in the lake surface sediments of Yangtze headstream were investigated.
选择地处长江源头典型湖泊之一的红枫湖为试区,对该水域的14个典型采样点表层沉积物中多氯联苯(PCBs)残留量进行了调研,以揭示长江源头典型湖泊中PCBs的残留现状,以及各种同系物在湖泊底质中的分布特征。
参考词条
补充资料：尘粒取样器
分子式：
CAS号：

性质：用于测定气体中的含尘浓度，由尘料取样管，抽气装置及流量计等组成。取样管一般用玻璃制成，内装玻璃纤维。取样时，将取样管进气口正对含粉尘的气流，吸进带尘气体。由于玻璃纤维装得很密实，尘粒几乎全部被收集。通过称量取样前后的重量可得出尘粒重量，由此可算出气体的含尘浓度。但此取样器收集的尘粒不便单独取出，因此不能测定粒子的粒度分布。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。