大孔

Obviousfeatures for semi-fluorinated surfactant syntheses of ordered mesoporous silicamaterials are as follows:(1) Tailorable pore size from 1.6 to 4.0 nm, estimatedby BJH and TEM methods;(2) pH value for synthetic system is extended toneutral condition;(3) Thicker porous walls, showing high hydrothermal andmechanical stability.

进一步的研究表明这些材料有以下特点：(1)根据N2吸附BJH计算方法和TEM的判断，孔径可以控制在 1.6 到 4.0nm之间；(2)合成体系的pH可以延伸到中性，而这在以往的报导中是很少见的；(3)较厚的孔壁，表现处很好的水热稳定性和机械稳定性，特别是JLU-14 比在相同条件下合成的SBA-15 和MCM-41 的机械稳定性要高很多；(4)非常大的表面积，例如JLU-1560的表面积高达

We are one of the largest exporters and manufactures of wire mesh in China, specialized in selling all kinds of metal wire mesh product, including welded wire mesh , stainless steel wire mesh, expanded metal mesh, plastic plain netting, window screen, crimped wire mesh, chain link fence, perforated metal mesh, wire mesh fences, nylon netting, hexagonal wire mesh, conveyer belt etc., also offering metal wire products, such as barbed wire, galvanized wire, PVC coated wire, copper wire etc.

我们是最大的出口商之一，在中国网丝生产，销售金属丝网产品，包括电焊网，不锈钢丝网，钢板网，塑料平网，窗纱，轧花网各类专门，勾花网，冲孔网，护栏网，尼龙网，六角网，输送带等，还提供诸如带刺铁丝，镀锌铁丝金属丝产品，PVC涂塑丝，铜丝等，广泛应用于石油，化工，食品，医药，建筑，家禽和牲畜等，我们将每年销售超过五〇〇〇〇〇〇〇平方米丝网。

Thirdly, by con-utilaziont of many methods such as exploitation and geology, dynamic producing process monitoring, water invasion behavior, core analyis and numerical simulation, 10 kinds of reservoir scale remaining oil distribution pattern in the steam huff and puff super heavy crude oil reservoir was put forward. Also, remainling oil distribution in the sand bed scale and sublayer scale were pointed out.Fourthly, Microcosmic displacement experiment was conducted for hot water driving in 100℃and 120℃. and steam drive at 170℃condition. Microcosmic remaining oil distribution characteristics were summarized. Remaining oil microcosmic distribution by steam drive at 170℃is different from that at 100℃, 120℃hot water driving. After the steam drive, there are three types of remaining oil distribute regular pattern, whic is impacted by many affecting factors like pore configuration, wettability and interfacial tension.

分析了砂层组规模和小层规模的纵向和平面剩余油分布规律。4、通过微观驱替实验，研究了100℃和120℃的热水驱及170℃蒸汽驱条件下剩余油的微观分布形态。170℃条件下剩余油微观分布形态同时受孔隙结构、润湿性及界面张力多种因素的影响，主要有三种形式：在油、汽、水三相共存的孔隙中，剩余油分布于汽、水之间，为薄膜状和弯月状；在只有油、汽两相共存的孔隙中，大孔道中主要是蒸汽，剩余油在细小的孔喉和孔隙角隅处以段塞或不规则状态存在；由于高温水蒸汽对原油具有萃取作用，剩余油以一种细小的珠滴状存在于孔隙表面。

The following main results are obtained: The TiO_2 photocatalyst with small crystallite size, high surface area, narrow and uniform pore size distribution, and microporous frameworks could be prepared out by applying MW radiation in the preparation process. The microwave-induced fluorescence technique verified for the first time that microwave enhanced the formation rate of hydroxyl radical, leading to the increase in the photocatalytic efficiency. Compared with the conventional catalyst, TiO_2 prepared by MW dielectric heating owns a higher UV absorption ability, and its optical absorption edge and photovoltaic response are shifted toward the short wavelength region, resulting in increase of photooxidation efficiency. The photocatalytic conversion and the mineralization ratio of acetaldehyde are increased respectively by 30% and 40% over the TiO2 prepared by MW radiation when compared to the TiO2 prepared by the conventional heating. For the MW-assisted photocatalytic reaction over the MW-prepared TiO2, production of hydroxyl radicals is enhanced by 22.5%, and the photocatalytic conversion is accordingly increased by 20%. Similarlly, applying MW also increased the photocatalytic conversion and the mineralization ratio of acetaldehyde over TiO2/Al2O3 sample.

论文得到如下主要结果和结论：(1)微波介电加热TiO_2 溶胶可得到晶粒度小、光催化活性高、比表面积大和孔径分布窄而均一，且微孔发达的TiO_2光催化剂；在溶胶干燥处理过程中微波可使催化剂表面缺陷增加，进而导致光催化反应过程有更多的活性羟基自由基产生；(2)微波制备能显著增强TiO_2 样品的紫外光吸收率，并使其光吸收和光伏响应阈值发生蓝移，从而提高TiO_2的氧化还原能力；(3)与常规加热法所制TiO_2比较，微波法制备的TiO_2对乙醛的光催化降解转化率提高30%，CO_2生成率提高40%以上；(4)与未加微波辐射时相比，发现在光催化反应过程中施加微波，TiO_2 的羟基自由基生成速率提高了22.5%，相应CH_3CHO 光催化降解转化率提高了20%；对Al_2O_3/TiO_2催化剂，CH_3CHO 光催化降解转化率甚至提高了33%，同时CO_2 的生成率也都大幅度提高；(5)微波辐射可改变光催化降解乙醛的产物分布，推断施加微波时乙醛光催化降解按照羟基自由基引发的链式反应机理进行，微波&非热效应&起主要作用。

In recent years, utilize high pressure rotatory water efflux hole in coal seam, with high-efficient, energy-conservation, hole big, form regular, broken rock efficiency high advantage its, win the favor from vast engineers and technicians deeply.

冲击地压一直是影响煤矿开采安全的一个难题，近年来，利用高压旋转水射流在煤层中钻孔，以其高效、节能、钻孔大、孔形规则、破岩效率高等优点，深受广大工程技术人员的青睐。

The quadratic aperture of the cat's-eye diaphragm is imaged too large.

猫眼光栏的方形光孔成象太大。

Italy's government was rocked by accusations made by a Mafia hitman that Silvio Berlusconi had made commitments to Sicily's Cosa Nostra as he was about to enter politics 15 years ago.

一名黑手黨殺手的指控：貝魯斯孔尼15年前要踏入政壇時，對西西里「我們的事業」黑手黨做出了承諾，震驚了義大利政府。

Since Eogene, amount of tectonic subsidence has a characteristics of becoming litthe gradually from south to north , depositional centre is migrated from south to north, volcanic activity is stronger in south and weaker in north during Kongdian stage, and inverse during Neogene.

自早第三纪以来，构造沉降量具有由南向北由大变小的特点，沉积中心也是由南向北迁移的，火山活动在孔店期时南强北弱，到上第三纪时则是北强南弱。

The thermal gradients of the depression decreased during the Cenozoic time. However, it decreased quickly in Eogene, but only changed a little during the Neogene period The thermal gradient was 540～500℃/km during the period of the Kongdian group deposition, 500～400℃/km during the period of Shahejie group, 400～385℃/km of Dongying group and 385～355℃/km during the Neogene.

研究结果表明，济阳坳陷新生代以来的古地温梯度是逐渐降低的，但在早第三纪时期下降的幅度较大，而在晚第三纪－第四纪则下降的幅度明显较小；济阳坳陷在孔店组沉积时期的地温梯度为540～500℃/km之间，沙河街沉积时期为500～400℃/km，东营组沉积时期为400～385℃/km，晚第三纪时期为385～355℃/km，第四纪以来基本未变。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。