bottomsampler,bottom-sampling device是什么意思

用法例句

Organicenrichment actuality and evaluate of the sediment in Changhu Lake;

长湖底质有机物富集现状及评价

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

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

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

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

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

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

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

The effect of substrate on growth of Penaeus japonicus juvenile;

底质对日本对虾幼虾生长的影响

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。

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。

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。