为抑制聚合物为基础的污染沉积物的形成方法,通常在碱洗的碳氢化合物形成的披露。
A method for inhibiting the formation of polymeric based fouling deposits normally formed during the caustic washing of hydrocarbons is disclosed.
为抑制聚合物为基础的污染沉积物的形成方法,通常在碱洗的碳氢化合物形成的披露。
A method for inhibiting the formation of polymeric based fouling deposits normally formed during the caustic washing to hydrocarbons is disclosed.
石英晶体微量天平测试技术可用于监测非金属材料出气和航天器敏感系统表面的分子污染沉积。
Quartz crystal microbalance test technique is widely used in monitoring non-metal material outgassing and molecular contamination condensation on sensitive system surfaces of spacecraft.
红树林根系有能力吸收并很好地截留水中的沉积物和污染物,这些沉积物和污染物在进入海洋之前流经这些根系。
Mangrove root systems have the ability to absorb and well trap sediments and pollutants in water that flows through them before they enter the ocean.
皮肤上的油脂和盐份能够降低绝缘体的性能,空气中的污染物可能沉积在绝缘体的表面,从而降低其电阻。
Oils and salts from the skin can degrade insulator performance, and contaminants in the air can be deposited on the insulator surface, reducing its resistance.
所以,如果由于不当的处理或空气污染物的沉积而在其表面形成薄膜,则应使用浸了甲醇的泡沫签来清洗。
Therefore, if a resistor acquires surface films from careless handling or deposits from air contaminants, it should be cleaned with a foam-tipped swab and methanol.
燃烧室积碳提高了排气污染。机油必须被注入以减少这类沉积。
Combustion chamber deposits increase exhaust emissions. Oils must be formulated to reduce such deposits.
进入河流、湖泊和海洋的污染物类型包括有机废料、其他营养物、有毒化合物和其他危险物质、热废水和沉积物。
The types of pollutants entering streams, lakes and oceans from such sources include organic wastes, other nutrients, toxic chemicals and other hazardous substances, heated water, and sediments.
另一方面,置换镀铜作为铁粉表面改性方法,工艺简单,沉积速度快,成本低,工艺流程中环境污染小。
On the other hand, as iron powder surface modification method, the copperized replacement technics is simple, low cost, fast sediment speed and has little environmental pollution.
该检测用于检测表面的铁的污染,如浸酸中铁盐残留,不锈钢表面的铁制工具的刮痕,焊接区的铁沉积以及铁的氧化物。
The test is used to detect surface iron contamination, i. e., iron salt residue from pickling, iron tool scratches on the stainless steel surface, iron deposits at weld areas, and iron oxides.
结合历史数据和现状调查,对常熟市昆承湖水下地形、沉积物、污染源和湖泊水环境质量现状进行了研究。
Based on the historical and present monitoring data, the underwater topography, deposits, pollution sources and water environment quality of Kuncheng Lake of Changshu City were studied.
论文还讨论影响沉积物分布的主要因素和按区域划分(北部、中部、南部)的污染特点。
We have also discussed the main factors influencing the distribution of sediments and the pollution characteristics and effects on regions (the north, the middle and the south of coast).
海洋中有机质、重金属、氮、磷、硫化物等含量的增加加重了沉积环境的污染。
The contents of organic matters, heavy metals, nitrogen, phosphorus, sulfide, et al. in Marine areas are becoming higher, which enhance the pollution of sediment environment.
事实上超过80%的海洋污染来自陆地活动和许多污染物沉积在河口和沿海水域。
In fact over 80% of all Marine pollution comes from land-based activities and many pollutants are deposited in estuaries and coastal waters.
沉积物的粒度是控制沉积物中污染物分布的主要因素之一。
Grain size is one of the main factors to control the pollutant distribution in sediment.
第三代汽油清净剂在保持发动机喷嘴、进气阀清洁的同时,增加了燃烧室沉积物(CCD),这将增加部分污染物的排放。
Although third generation gasoline detergent additives keep nozzles and intake valves of engines clean, they simultaneously increase combustion chamber deposits (CCD).
暴露于大气中的铝表面呈现三层结构,即氧化铝和氢氧化铝层、其上的腐蚀产物层和最上层的污染物沉积形成的污染物层。
A three layer of aluminum exposed to atmosphere is identified: the aluminum and its native oxide, the corrosion layer atop oxide aluminum, and a surface contamination layer.
在对湖泊或水库等浅层水域的环境变化研究和环境污染检测中,浅层水域的淤泥质沉积物取样是一项必不可缺的工作。
It is very essential in the study of environmental change and pollution monitoring to sample the undisturbed sediment from shallow water areas, such as lakes and reservoirs.
现代沉积物是湖泊营养盐和污染物的重要储藏库,在一定条件下,这些内源污染负荷可能成为水体富营养化的主导因子。
The modern sediment is an important storehouse of the nutrient salt and pollutant in lakes. Under proper conditions, these internal contamination load sources can cause the eutrophication of lakes.
土壤和沉积物是有机污染物的最终归宿之一。
Soils and sediments are the main final fate of organic pollutants.
本文研究了珠江口滨海湿地沉积物中的重金属污染状况及其生物有效性。
This article studied the heavy metal pollution condition in the sediments of the coastal wetlands at the Pearl River estuary.
膜污染主要受沉积过滤定律控制。
The membrane fouling process adjusts the cake filtration law.
河漫滩上沉积物的沉积伴随着与沉积物相结合的营养和污染物质的沉积。
Deposition of sediments on river floodplains is accompanied by the deposition of sediment-associated nutrients and pollutants.
化学治理技术中,较详细介绍了壳聚糖在治理海洋沉积物中重金属污染的潜在应用价值。
And in the chemical control, the potential application of Chitosan in prevention of heavy metal pollution in Marine sediments was introduced in detail.
通过研究有机氯农药在沉积物柱样中的垂直分布特征,探讨了有机氯农药在泉州湾的污染历史。
Trough the study of the vertical distribution characteristics of organochlorine pesticides in the sediment core, the pollution history of organochlorine pesticides in Quanzhou Bay was discussed.
通过研究有机氯农药在沉积物柱样中的垂直分布特征,探讨了有机氯农药在泉州湾的污染历史。
Trough the study of the vertical distribution characteristics of organochlorine pesticides in the sediment core, the pollution history of organochlorine pesticides in Quanzhou Bay was discussed.
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