This suggests that Earth's water may have come from inside, driven to the surface to form the oceans, by geological activity.
这表明，地球上的水可能来自内部，由于地质活动，被带到表面形成海洋。
The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.
后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。
The purposeful collective activity of ants and other social insects does, indeed, look intelligent on the surface.
蚂蚁和其他群居性昆虫有目的的集体活动表面上看起来确实是有智慧的。
Scientists believe that during the Cretaceous period, a spate of volcanic activity caused plant life to bloom on the surface of the oceans.
科学家认为，在白垩纪，一连串的火山活动导致植物在海平面生长旺盛。
This works by deploying an array ofelectrodes over a person's scalp and recording surface manifestationsof the electrical activity going on under his skull.
这种技术通过在人的头皮上放置一系列电极从而记录头颅内的电活动。
Volcano expert Juan Carlos Carrecedo said at the time: 'There is a ball of magma rising to the surface producing a series of ruptures which generate seismic activity.
火山专家胡安·卡洛斯·卡雷塞多当时说，“这是一团岩浆在向地面上升时造成地壳破裂，也就产生了这样的火山活动。”
Geologic features imply that liquid water once flowed across the surface, and volcanic activity, now dead, once flourished, recycling chemicals and minerals between the surface and the interior.
地质特征暗示着火星上曾经流动着液态水，而现在悄无声息的死火山也曾经一度繁荣，在地表和火星内部进行着化学物质交换。
Automation detection - Detecting bots, crawlers, scanners and other surface malicious activity.
自动检测——对机器人、爬虫、扫描及其他恶意行为进行检测。
Then sandblasting, flame or chemical means, and improve the surface activity.
然后用喷砂、火焰或化学方法处理，提高表面活性。
Silicone surfactants have become one of the most successful group of surfactant. Their outstanding surface activity of these products is not only in water but also in organic media.
硅氧烷表面活性剂是最成功的一组表面活性剂，它们优异的表面活性不仅在水体系中，而且还存在有机介质中。
In the meantime, the influence to anionic stability and surface activity of the crystal size were investigated.
同时，研究了晶体大小对晶格离子稳定性和表面活性的影响。
The results showed that these surfactants have high surface activity and same hydrophilic group, and the 1,3dioxolane ring are also hydrophilic.
这些表面活性剂具有较高的表面活性和相同的亲水基，1 ，3二氧杂环戊烷基团也有一定的亲水性。
The main reason of coal spontaneous combustion is interaction between surface activity structure of coal and oxygen.
煤自燃主要是由于煤表面活性结构与氧之间相互作用的结果。
Cu complex of the surfactant have water soluble ability and surface activity, can catalyze the air oxidation of benzyl alcohol or Benzoin not only in DMF solution but also in alkali water solution.
表面活性剂铜配合物具有较好的水溶性和表面活性，不但在DM F溶剂中有效催化苯甲醇、安息香的空气氧化反应，而且在稀碱溶液中形成的金属胶束也可催化氧化苯甲醇。
The properties of viscosity and surface activity of urea-formaldehyde oligomers were studied, as well as their relationship with the encapsulation efficiency of microcapsules.
研究了低分子量脲甲醛缩聚物水溶液的粘度特征和表面活性及其与胶囊包封率的关系。
Objective: to find good activity surface activity dose which eliminating chromium ion in the waste water by using foam flotation method to determine the kinds of the surface activity.
前言：目的：为找到泡沫浮选法去除废水中铬离子活性较好的表面活性剂，对表面活性剂种类进行探索。
This paper relates to synthesis of two new structure amphoteric phosphate surfactants which have not been reported in civil and their surface activity and applied capabilities have been characterized.
合成了两种国内文献未见报道的新型磷酸酯两性表面活性剂，并对其表面活性及应用性能进行了测试。
UR spectrometry shown that molecular structure of converted ligninsulfonates changed in great extent and their surface activity obviously improved.
红外光谱分析表明，改性后的木质素磺酸钠分子结构有较大改变，表面活性明显提高。
The properties of alkyl polyglucoside (APG) are briefly narrated, i. e. physical property, solubility, surface activity, toxicity, biodegradability and so on.
简要概述生物基表面活性剂烷基糖苷的物理性和溶解性、表面活性、安全性和生物降解等性能。
Ozone method was used to modify surface activity of pitch carbon fiber to improve the interfacial adhesion between fibers and matrix.
为了提高沥青基炭纤维表面活性，采用臭氧氧化法对沥青基炭纤维表面进行改性。
The surface activity of minerals and materials is a characteristic parameter of their surface reactivity, which is controlled by the functional groups on mineral surfaces.
矿物及其材料的表面活性是其表面反应性的具体表征，它是由矿物表面功能基所控制。
Biosurfactant is a kind of microbial compounds produced by microorganism that exhibited pronounced surface activity.
生物表面活性剂是由微生物产生的一类具有表面活性的生物化合物。
The results indicated that the product could decrease the surface tension of water, and had lower critical micelle concentration, better surface activity.
该种阳离子表面活性剂具有较好的表面活性。
Through measures such as surface contact Angle method and infra-red spectrum, the effects of particle size, particle surface activity, particle shape, etc were studied.
通过对改性产品接触角测量和红外光谱分析，探讨了颗粒粒度、表面性质、晶体结构对填充橡胶性能的影响。
With thickening, adhesion, dispersion, emulsification, film formation, suspension, adsorption, gel, surface activity, water retention and protective colloid and other characteristics.
具有增稠，粘合，分散，乳化，成膜，悬浮，吸附，凝胶，表面活性，保持水分和保护胶体等特性。
In serious alkaline media, "solid surface activity" values are quite low and the adsorption can't take place therefore.
在强碱性介质中，“固体表面活度”很低，若二硫代碳酸盐浓度不大，则不能发生吸附。
The experiment results show that all the HDP-HPCHS products can easily dissolve in water and all possess good surface activity.
实验结果表明，不同分子量的HDP-HPCHS产物均具有良好的水溶性和表面活性，且其表面活性随分子量的改变而呈规律性变化。
The experiment results show that all the HDP-HPCHS products can easily dissolve in water and all possess good surface activity.
实验结果表明，不同分子量的HDP-HPCHS产物均具有良好的水溶性和表面活性，且其表面活性随分子量的改变而呈规律性变化。
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