| 1. | In the case of uranium the sample location or medium is not as critical . 分析铀时对取样点位置或介质的要求就不那么严格了。 |
| 2. | Aerospace - hydraulic system fluid contamination - location of sampling points and criteria for sampling 航空航天.液压系统流体污染.取样点的位置和取样的准则 |
| 3. | If any of the samples are found to be contaminated , further exploration of multiple sampling points is advised 若任何样本发现被污染,则建议进一步开发多取样点。 |
| 4. | The various sampling techniques and special precautions that are taken . are sample points flushed ? how 各种取样技术和所采取的特殊注意事项.取样点是否要吹扫?如何吹扫 |
| 5. | Aerospace ; hydraulic system fluid contamination ; location of sampling points and criteria for sampling ; identical with iso 11217 : 1993 航空航天.液压系列流体污染物.取样点定位和取样准则 |
| 6. | Human intervention , however , does apply to ensure the selected sample points will adequately cover all classes 然而,我们也适当地进行了人为干预,以便保证选取的取样点能充分覆盖各个类型。 |
| 7. | By sampling in different filter layer and analyse of water head damage in all sampling point , i draw a condusion about filter function of porcelain sand filter is superior to the general filters 通过滤层分层取样,对各取样点的水头损失的分析,得出瓷砂滤料较一般滤料过滤性能优越的结论。 |
| 8. | Only the water at jiekou had been eutrophic . the result of biological assessment was that the average density of phytoplankton at all the sampling spots was more than 1 , 000 , 000 per litre , indicating that the lake was eutrophic going by the population density . but this density of phytoplankton was higher than that in similar lakes at the same pollution level 生物评价结果认为,千岛湖浮游藻类平均密度较同类营养水平的淡水水体高,其所有取样点浮游藻类平均密度都10 ~ 6个? l ,国内外一般认为当浮游植物平均密度10 ~ 6个? l时,其已经达到富营养化水平,因此单从浮游植物密度来看,可以认为千岛湖已达到水体富营养化。 |
| 9. | We can draw some conclusions below by analyzing the salt capacity in the soil in the ejnqi oasis in the direction from east to west and from south to north , which is that in the horizonal direction , the total salt capacity in the soil become more and more higher with the longer distance far from the center of the oasis and in the vertical direction the salt capacity differs evidently with depth 额济纳旗绿洲东西、南北两个方向的取样点的盐份含量具有以下特点:以绿洲中心为基点,离绿洲越远,总含盐量越高;在垂向上,远离绿洲的土壤中各种盐类的浓度随深度的变化也很大。 |
| 10. | Qiandaohu lake was very famous for its clean water quality . but in recent years the water body has become seriously eutrophic especially during summer months in some areas of the lake and came to the attention of national , provincial and city environment protection agency . the main objective of this study involved the following : sampling and monitoring water from the lake ; water quality assessment and biological assessment ; ascertain the limiting factors for phytoplankton growth ; fuzzy cluster analyse of water pollution of all sampling points ; predicting total phosphorus concentration in the lake by using static models ; setting up regression models and their application ; setting up an eco - dynamic model and its simulation 本研究根据1998 - 2000年连续监测数据,对千岛湖进行了水质评价和生物评价;分析了千岛湖水体富营养化的限制性因子;同时根据千岛湖各个取样点的污染状况,对千岛湖进行水环境质量区划;利用前人的经验统计模型预测了千岛湖现有的磷浓度水平及治理所需要削减的污染物负荷量;并且组建了多个回归统计模型,运用这些模型预测千岛湖水体中的总磷浓度;最后根据多年水质、底质、生物等方面的监测数据以及千岛湖流域的气象和社会经济状况的资料组建机理性的千岛湖富营养化模拟模型。 |