凹陷

Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly, due to the formation of blackcoal and highly-metamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.

以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例，系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制，进而导致各赋煤区气源条件的不同；估算了王营井田在区域深成变质过程释放甲烷气的基础上，接触变质作用所形成的附加甲烷量；指出由于岩浆侵入形成了天然焦和高变质裂隙煤，使煤层物理性质及储集能力发生了大的变化；强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。

"I'm trying to pop out this dent, but it's not really working."

"我想把这个凹陷吹起来，可是一直不行。"

METHODS: Nine cases(12 eyes), male 4 cases (5 eyes), female 5 cases (7 eyes), suffering from posteriority ptosis , 1/2 1/3 pupil covered by upper palpebral margin, the upper eyelid muscle strength more than 10mm, accompanied by the orbital zone depression with the upper eyelid fold increased. Neostigmine test were used to exclude myasthenia gravis.

本组病例共9例12眼，男4例5眼，女5例7眼，均表现为后天性上睑下垂，上睑缘遮盖1/2～1/3瞳孔，提上睑肌肌力均在10mm以上，伴有上眶区凹陷，上睑皱壁增高，部分患者行新斯的明试验排除重症肌无力。

This is one of the chief aims in this study.Crossbite of anterior teeth in preadolescent children is one of the most common type of malocclusion in the patients who are characteristic by maxillary deficiency and mandibular prognthism.

替牙期反是临床上较为常见的错畸形之一，患者多表现为上颌发育欠佳，面中1／3凹陷，下颌前突，同其他类型错相比，该类错对患者心理及口颌系统功能的影响是相对较大的。

Divided by mudstones of the middle and lower parts in the Sha-3 Member, two superimposed fault systems are formed in the Cenozoic strata in the western sag, including long-term active faults, presenile active faults and late-developed active faults, which, in origin, are extensional normal fault, strike-slip fault, strike-slip normal fault, strike-slip reverse fault.

结果表明：以沙三段中下部大套泥岩为界，西部凹陷形成了上下叠加的2个断裂系统，主要发育长寿型、早衰型和后生型3种类型断层和张性正断层、走滑断层、走滑正断层和走滑逆断层4类不同性质断层。

Dolomite reservoir fracture system, which was structural fracture,was studied by these two methods in Anpeng area of Biyang Depression.The results show that the principal curvature method has obvious deviation when used for a gentle structure latitude district.

研究结果表明，在凹陷内部构造变形幅度相对平缓的地区，采用主曲率法预测构造裂缝时存在较大偏差，而高斯曲率法的应用结果与地质解释、钻井和测井资料吻合较好。

Hole structures were obtained for low molecular weight polySt, and protuberance structure for high molecular weight polySt.

低分子量的PSt获得孔洞形貌，而高分子量的PSt则得到中间有凹陷的凸起结构。

The characteristic changes on necropsy were swerlling of the proventriculus and the kidney;necrosis and atrophy of the proventriculus papillae.

对人工感染病例进行了系统的病理学观察，主要的眼观病理变化为腺胃胃壁增厚、乳头消失或乳头扁平，乳头顶部凹陷坏死，肾肿大、尿酸盐沉积。

Results Main Mammographic appearances of early breast cancer include masses(17 of 23 cases) and microcalcifications(16 of 23 cases),it also include comet?tail sign(5 of 23 cases),pseudopod sign(4 of 23 cases),canal sign(2 of 23 cases) and increased focal vascularity(6 of 23 cases),cloudy fatty(3 of 23 cases),skin thicken(5 of 23 cases),nipple depressed(4 of 23 cases).

结果：X线表现为结节肿块影17例，彗星尾征5例、伪足征4例、导管征2例，微小钙化16例，还有血运增加6例、脂肪层浑浊3例，皮肤增厚5例，乳头凹陷4例。

In other words, the part under the pubes is hollow or receding, and not, like the male organ, protruding.

换句话说，阴毛下面的部分是凹陷的或者向后斜的，不像男性器官，突出。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐