sediment bulb
- sediment bulb的基本解释
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沉淀器, 泥沙采样器
- 相似词
- 更多 网络例句 与sediment bulb相关的网络例句 [注:此内容来源于网络,仅供参考]
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Sediment from river is not the main source of the Rushan Bay now any more ,which leads to the change of balance of sedimentation power. Sediment will transport because of the drive of hydrodynamic elements in macroscopic view .Direction of suspended load is basicly the same as tidal current .Flood tide makes suspended load transport to tip of the inner Bay and to the Mouth in exterior Bay .The direction of longside sediment transport in two sides of the Mouth mainly focus in the Mouth .Because the coastline along the exterior Bay is very meandering and it belongs to the type of bedrock ,besides some sediment going into the inner Bay ,so actual net sediment discharge rate is less than calculation .It develops an ebb delta out of the Mouth and forms tidal sand ridge ,tidal washing canal ,barrier bar and marine physiognomy ;The result of model simulation disclosures that differences of sediment erosion and siltation between single tidal action and wave-current action are very big .From the analysis of sediment composition、sediment sources and stability of beach and ridge ,this article gets the conclusion that the channel has the possibility to silt ,though the course maybe very slow.
通过分析研究文章得出如下结论:沉积物平面分布与水动力的时空变化存在很好的相关性;口门外发育落潮流三角洲,形成潮流沙脊、潮流冲刷槽、浅滩、拦门沙等水下动力地貌;乳山湾河流来沙已不是湾内泥沙主要来源导致沉积水动力平衡发生改变,宏观上表现在泥沙受水动力驱动发生不断运移;悬沙运移方向与涨潮流方向基本一致,湾内涨潮流带来的悬移质泥沙向湾顶运移,湾外悬移质泥沙主要向口门方向运移;湾口两侧岸段沿岸输沙方向均指向口门方向,由于乳山湾外海岸线曲折,两侧岸段以基岩为主,加之部分泥沙进入湾内,实际净输沙量小于计算值;数值模拟发现潮流单独作用与波流共同作用下泥沙蚀淤模拟差别较大;从沉积物组成、泥沙来源及滩槽稳定性三个方面分析,文章认为研究区存在航道淤积的可能性,但过程相对较慢。
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The environmental transport of POPs in Dagu Drainage River selected as a typical example is reasonedly investigated in this article. Characteristics of sediment from DDR in Tianjin are analyzed. The mean value of TOC in sediments is as high as 8%, which is in favor of sorption POPs. The particle sizes of both suspended sediment and bottom sediment are mensurated by Malven Mastersizer. Silt accounts for about 60% in mass, while clay is about 10%. Particles of sediments belong to fine granule. Suspended sediment and bottom sediment mensurated by XRD mainly consist of quartz and illite, both account for 75.5% and 62.2%, respectively. The conformation of suspended sediment is very similar to bottom sediment from SEM photo.
采集自天津大沽排污河的底泥样品进行了特征分析:全河段底泥TOC含量较高,平均值约为8%,利于吸附POPs;Malven Mastersizer激光粒度仪测定了大沽排污河悬浮物和沉积物的粒径分布,结果表明主要以粉砂为主,占60%左右,其次为黏土,占30%左右,大沽排污河底泥颗粒属于细颗粒;悬浮物样品和表层沉积物样品经X射线衍射分析表明,石英和伊利石是大沽排污河底泥悬浮物及沉积物矿物的主要成分,两者之和分别占75.5%和62.2%;环境扫描电子显微镜结果表明,河流底泥悬浮物和沉积物的形态没有本质差别。
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Study on the rapid Propagation Technique of Lycoris. Herb and get follow results: In the period found of axenic clone 0.1%HgCl2 is the best disinfector to deal with the Lycoris" bulb ,as to neat part, such as root, leave, and bulbil, is fit to use 0.1%HgCl2 antisepsis 7min. And found the best effect is the bulb scale with base. Root, leaf and bulb scale without base all were not inducement adventitious buds. Different position of bulb had different culture effect. 3-15 of middle part of bulb can be induced most adventitious buds but inner and outer of least it. Incised the bulb with three types (pieces of eight, pieces of six, piece of four), and found the type of pieces of six is best to Lycoris mass production. L.sprengeri is fit MS+BA5mg/l+NAA0.1mg/l and L.squamigera is fit MS+BA5mg/l+NAA0.5mg/l, but the medium fit to culture L.longituba haven"t be found.In the period of Subculture-Found of mass production, the most multiplication of adventitious buds in MS+BA5mg/l+NAA0.5mg/l during subculture of L.sprengeri, L.squamigera.
石蒜属植物快速繁殖技术研究中,在无菌无性系建立阶段:鳞茎以0.1%HgCl_2消毒10-12分钟效果最好,而叶、根尖、鳞芽等较干净部位选用0.1%HgCl_2消毒7分钟;用三种石蒜属植物的叶片、根尖、鳞芽及带基盘与不带基盘鳞片进行培养,以带基盘鳞片诱导分化效果最理想,鳞芽易培养出芽,但数量有限,而叶片、根尖与不带基盘鳞片均未诱导分化;带基盘鳞片为石蒜属植物快速繁殖最佳外植体,以鳞茎中部3-15层芽诱导率高,较外层稍次之,内部鳞片诱导率最低;选用八等分法、六等分法、四等分法切割鳞茎,六等分法综合效果最好;每外植体带三鳞片培养最为适宜;三种石蒜属植物各自适合的培养基成分不同,换锦花在MS+BA5mg/l+NAA0.1mg/l中培养效果最好,夏水仙为MS+BA5mg/l+NAA0.5mg/l,而白花长筒石蒜在各培养基组合中培养效果均不理想,其适合的培养条件有待于进一步研究。
- 更多网络解释 与sediment bulb相关的网络解释 [注:此内容来源于网络,仅供参考]
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frosted bulb:磨砂灯泡
bayonet-type bulb 卡口灯泡 | frosted bulb 磨砂灯泡 | opal bulb, opaque bulb 乳白灯泡
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frosted bulb:磨砂灯泡 nyz中国英语学习网
bayonet-type bulb 卡口灯泡 nyz中国英语学习网 | frosted bulb 磨砂灯泡 nyz中国英语学习网 | opal bulb, opaque bulb 乳白灯泡 nyz中国英语学习网
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frosted bulb:摩挲灯胆
bayonet-type bulb 卡口灯胆 | frosted bulb 摩挲灯胆 | opal bulb, opaque bulb 乳白灯胆