致密

Experiments were carried out on tight gas formation core sample with a water base crosslinked gel fracturing fluid.

在室内用水基冻胶压裂液浸入致密气层岩心，进行了伤害试验研究。

Changes of lung ultrastructures: The results of electron microscope showed that in group 1, there were swelling mitochondria was arranged in disorder, less matrix, and hyalomere appeared, thin double-deck membrane in 50% samples: Interalveolar septum stroma was with edema in 60% samples; Polymorphonuclear leukocyte gathered in vessel or emigrated out of vessel in 50% samples; In group 2, double-deck membranes of mitochondria were integral, densely matrix showed micro-granule shape in 90% samples; Pinocytosis in epithelial cells of type Ⅰ lung strengthened, being destroyed, and pinocytosis in endothelial cells strengthened in 10% samples; lnteralveolar septum stroma was with edema, no polymorphonuclear leukocyte gathered in vessel or emigrated out of vessel or corpuscule was empty in type Ⅱ alveolar epithelium in 20% samples.

肺组织超微结构改变观察：纯氧机械通气组50%标本线粒体肿胀、排列紊乱，基质变浅，出现透明区，双层膜变薄，60%标本肺泡隔间质水肿，50%标本多形核白细胞血管内聚集或游出血管外现象；34%氧浓度机械通气组90%线粒体双层膜较完整，基质致密呈细颗粒状；10%标本可观察到Ⅰ型肺上皮细胞有吞饮增强、破坏及内皮细胞吞饮增强；20%标本肺泡隔间质水肿；未见到多形核白细胞血管内聚集或游出血管外现象及Ⅱ型肺泡上皮板层小体排空。

Furthermore, correlation between poisson ratio and relative density has been given, this is the key to establish yield criterion of powder metals.

在此基础上，本文从粉末体具有土和致密体的双重性质出发，依据土力学和塑性力学，提出并建立了粉末体的屈服准则。

First, from room temperature to 500oC, the shell structure is amorphous with crinkly and airtight character. The shell structure begins to change into γ-Al2O3 and α-Al2O3 at 900oC. The surface of shells shows nano-sized pores at 900oC from SEM and BET analyses. When heated to 1000oC and 1100oC, the shell forms stable α-Al2O3 structure with smooth surface. Cracks often occur at the triple grain junctions. The specific surface area and the total pore volume of the hollow spheres increase with the calcination temperature.

首先，将锻烧温度由室温提升至500℃时，球壳属非晶相皱褶状致密结构；在900℃时开始有γ-Al2O3相及些许的α-Al2O3相出现，由SEM及BET结果得知，900℃之球壳表面有许多奈米级孔洞出现；当加热至1000℃和1100℃时，球壳形成稳定相之Al2O3结构，壳层表面趋於平滑，且球壳在晶界处有微裂缝存在；由BET 结果得知，比表面积及总孔洞体积会随锻烧温度之增加，有增加之趋势。

It was found that the MCM-22 zeolite catalyst prepared by the VPT method not only showed good crystallinity and high BET surface area, but also better crystal growth orientation and denser structure.The catalyst showed high activity, selectivity and good stability for alkylation of benzene with propylene, especially better selectivity to the end product cumene.The shaped MCM-22 zeolite catalyst prepared by the VPT method has good prospect of industrial application in synthesis of cumene.

结果表明：汽相法制备的MCM-22分子筛催化剂不仅具有较好的结晶度和较高的微孔表面积，而且具有更好的晶体生长取向性和更加致密的结构；在烷基化反应中也具有很好的活性、选择性和稳定性，特别是对目的产物异丙苯的选择性明显高于水热法合成的催化剂，在异丙苯合成上具有很好的应用前景。

The white porcelain has a beautiful clour and special shape which could be regarded as the curiosa in tea sets.

瓷器茶具常见的是白瓷盖碗，白瓷盖碗具有坯质致密，上釉、成陶火度高，无吸水性；传热、保温性能适中；加之色彩缤纷，造型各异，堪称饮茶器皿中之珍品。

It can be taken as the guide to determine the dimensions of cylindrical can .

在此基础上，提出了粉末体在圆柱形包套内均匀致密的判据，对包套尺寸的确定具有指导意义。

Oxidation, decarburization and ablation of Cr3C2-BaF2CaF2 during spray were avoided due to the protection by NiCr layer.

表而包覆的致密NiCr层抑制了喷涂过程中颗粒的氧化、脱碳初烧蚀。

Finally the mechanisms and factors of decarburization of WC particles in spraying were explor...

结果表明：纳米结构WC-12Co涂层结构致密，孔隙率低，与基体结合状态良好；纳米粉末在喷涂过程中比微米粉末氧化失碳严重，并发生了不同的纳米晶粒的长大；纳米粉末在喷涂过程中的氧化脱碳程度不仅与喷涂工艺有关，还在很大程度上取决于粉末本身的结构特性。

The company is negotiating with the relevant units, small power plant fuel Press joint programs, plans to invest 30 million set up large-scale dense biomass briquette equipment production base.

公司正在与有关单位洽谈中、小电厂燃料压块机的合资合作项目，计划建立投资3000万的大型生物质致密压块设备生产基地。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷