查询词典 water flow
- 与 water flow 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Fill the role of letter is to pump shell and closed the gap between the shaft from the water pump does not flow outside to not let outside air into the pump.
填料函的作用主要是为了封闭泵壳与泵轴之间的空隙,不让泵内的水流不流到外面来也不让外面的空气进入到泵内。
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Fill the role of letter is to pump shell and closed the gap between the shaft, not pump the water does not flow to the outside to not let the outside air into the pump.
填料函的作用主要是为了封闭泵壳与泵轴之间的空隙,不让泵内的水流不流到外面来也不让外面的空气进入到泵内。
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The operation condition of N-methyl glucamine is, columniation temperature is 30℃, detection temperature is 35℃, flow rate is 0.3mL/min, the mobile phase is methanol: water (2% trifluoroacetic acid)=5: 95 .
确定的色谱操作条件为核糖胺:柱温30℃,流速0.7mL/min,检测波长244nm,流动相甲醇:水=40:60;葡甲胺:柱温30℃,检测池温度35℃,流速0.3mL/min,流动相为甲醇:2%三氟乙酸水溶液=5:95。
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The HPLC methods for analysis of N--ribitylxylidine and N-methyl glucamine were established. After optimizing the operation conditions, the principal product and main impurities were well separated. And they were determined by LC-MS. The operation condition of N--ribitylxylidine is, columniation temperature is 30℃, flow rate is 0.7mL/min, UV wave is 244nm, the mobile phase is methanol: water=40: 60 .
首次建立了对葡甲胺和核糖胺的高效液相色谱分析方法,通过对色谱操作条件的优化,成功分离了主产物和杂质,在此条件下,应用液相色谱-质谱联用仪对糖基胺及生成杂质进行了指派定性,并测定了两种糖基胺及其主要杂质的含量,获得了满意的结果。
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Current-limiting valve is mainly used for multi-pump units in parallel with changes in the way the number of traffic conditioning system, installed in the pump exports, from restrictions on water pump flow, stable head.
限流止回阀主要用于多泵并联采用改变台数的方式进行流量调节的系统中,安装在水泵的出口,起限制水泵流量,稳定扬程。
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The samplings of water samples were made from Suzhou and Huangpu River (Station Beixinjing, Henan Road Bridge, Shiliupu Dock and Nenjiang Dock) for the determination of NH4-N, NO2-N, NO3-N, PO4-P and SiO3-Si by a Continuous Flow Analyzer.
于2002年4~7月在苏州河、黄浦江4个采样点采集水样,并用连续流动分析仪进行NH3-N、NO2-N、NO3-N、PO4-P、SiO3-S1等5个项目含量的测定。
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The optimized cooling circulation system improves flow velocity and rate of cooling water, strengthen the cooling effect.
优化设计冷却循环,提高冷却水的流速和流量,增强冷却效果。
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The main environment geological question is: The earth"s crust where the faultage and earthquake are active is unstable; collapse , landslide, mud-rock flow and soil erosion ; The underground karst subsides, seepage question; Basic rock expand, expend and compress soil body, the salt deposit corrode out of shape and groundwater"s corrodent harm; The soft soil question of basin; The soft rock body, cracked rock and the weathering rock are relatively poor stability; High and cold regional highways and railways" frozen soils freeze and melt calamity problem; The around rock of tunnel are unstable because of the coal seam gas, spring water, underground developed area; Project cutting slopes, constructed abandon soil and reservoir, lake"s ecology geological environmental protection issue; Thedangerous shoal of the channel % submerged reef question; The problem of rebuilding channel project and dock etc.; And the problem of unstable ground and groundwater corrosivity during building airport; At the same time, with the international big pathways" implementation and completions of constructions, adjusting the cities and counties" constructions , the crowd occupy changing , the cultivated land distribute changing and the adjustments of structure, will cause local environmental geological issues outstanding; According to multiple statistical analysis , value calculate and integrated appraise result, in the northwest and southwest of Yunnan, the traffic relatively low density, traffic engineering is relatively weak impact on environment, It is the area where a environme
主要的环境地质问题是:活动性断裂、地震带的地壳不稳定;崩塌、滑坡、泥石流及水土流失;地下岩溶塌陷、渗漏问题;基础岩体膨胀、胀缩土体、含盐层侵蚀变形和地下水的腐蚀危害;盆地软土问题;软弱岩体、碎裂、风化岩体稳定性较差;高寒地带公路、铁路建设的冻土冻融灾害问题;煤层瓦斯、涌水、地下采空区等隧道围岩不稳定问题;工程切坡、施工弃土及水库、湖泊生态地质环境保护问题;航道险滩、暗礁问题;渠化工程、码头等库岸再造问题;以及机场建设中的不稳定地基及地下水腐蚀性问题;同时,随着大通道建设的实施和完成,城镇建设的调整、人群居落的变化和耕地分布及结构的调整组合,都可能造成局部环境地质问题的突出等等。经多元统计分析数值计算、综合评价结果,滇西北、滇西南地区交通密度较低,交通工程对环境的影响程度较弱,是环境地质状况好的区域;有主要高原湖泊分布区的,包括昆明、个旧、文山的滇东南区域,环境地质状况较好;大姚、楚雄、篙明及会泽、昭通一镇雄的区域,即滇中北部中生界红层和滇东北岩溶区,环境地质状况中等;而包括保山、德宏、大理、临沧的滇西地区及景东一墨江以东、双柏一石屏一河口以西及东川一寻甸一曲靖地段的滇中一滇东地区,环境地质状况较差。云南国际大通道建设涉及全省区域,如何利用地质环境、实现可持续发展,就必须依赖于国际大通道建设与地质环境之间良性关系的建立。应本着对区域地质环境客观存在的科学认识原则、建设过程中环境效益优先的可持续发展原则、法制性原则、对大通道建设中环境地质的因地制宜及其可防治性原则。并且从组织管理、不同类型大通道、不同环境地质问题类型等方面,提出了对策措施。最后,提出了建立国际大通道建设与环境地质良性关系的宏观建议。
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By means of image theory and potential superposition principle,this paper presents the analytic solution of water cresting height and lateral distance from wellbore under steady flow,and optimizes the optimum wellbore placement.
该文利用镜像反映和势的叠加原理,给出底水油藏水平井稳定渗流情况下不同时刻和临界条件下底水脊进高度和水脊面距井轴的侧向距离的解析解,同时结合矿场实例给出实际优化水平井最佳井筒位置,其结果和方法对底水油藏水平井油藏工程设计和理论研究具有一定的指导意义。
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Keywords River networks;Water quality model;Finite volume method;Curvilinear coordinates;SIMPLEC algorithm;Overbank flow
Article From 大连理工大学;港口、海岸及近海工程博士论文 2007年度河网;水质模型;有限体积法;曲线坐标; SIMPLEC算法;漫滩流动
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。