上壳

The oceanic basin was finally been closed to form a new unified continent in the end of Carboniferous, went through two periods of plate tectonic system and two times of main underthrust collision orogeny.

摘 要：甘肃、内蒙古北山地区从寒武纪初期在前震旦纪统一古陆壳的基础上发生裂解，到石炭纪末洋盆最终闭合形成新的统一大陆，先后经历了两期板块构造体制和两次主要的俯冲-碰撞造山作用。

With the constraints from published paleopmagnetic data on motion rates of continental blocks prior to their collision, this work firstly proposed the ultra-fast subduction rate could assist the underthrust of low-density continental crust into mantle depth to some extents.

在综合古地磁和地球物理资料的基础上，本文首次提出快速俯冲过程是一种驱动陆壳进行俯冲的因素，在超高压变质带的形成过程中，快速俯冲过程可能起到了某种程度的驱动作用。

Sarah had managed to pry apart the shells with her unhandy weapon far enough to nibble a wee bit at the cold and clammy world within.

莎拉设法用她笨拙的武器把牡蛎打开一个够大的口子，在又冷又粘的壳内世界里细细地咬上一小口。

We infer that these three earthquakes are mainly caused by vertical deformation of upper mantle and material exchange between crust and upper mantle.

根据本文反演得到的高分辨率的S波速度结构，我们认为这三个强震的成因与上地幔的垂直形变、壳幔物质的交换和地壳中的流体有关。

The shell hoop (15) has a rim (16) which extends upwardly and outwardly.

壳环（15）具有一个边（16），它朝上朝外延伸。

The Northern Uplift of the Tarim Basin had undergone a long-term compressional uplifting and erosion since the Early Paleozoic,and also integrated with the upwarp of the Cambrian gypsum formation,thus forming two basic types of carbonate rock traps,namely,weathered-crust buried hills and insider anticline traps.

塔北隆起自早古生代以来经历了长期的挤压隆升剥蚀过程，结合寒武系膏盐的塑性上拱，形成了两种基本的碳酸盐岩圈闭类型，即风化壳潜山和内幕背斜圈闭。

There are high-velocity density layers in the lower crust, which would be represent crust-mantle mixing layer formed by mantle material upwell The model of lithosphere subduction and underplating of mafic magma is supported by all geophysic data

在下地壳下部存在高速致密物质层，可能代表了上地幔物质上涌形成的壳-幔混合层，上述地球物理资料均支持岩石圈消减作用和玄武岩浆底侵作用。

Pinhole camera is used in this system and the defense device is built in. The introduction of isolated layer make the pinhole camera departs from high temperature and high pressure. Special active velamen is added to the camera to keep it clean and resist the dirt.

采用小镜头并装置防护壳，引入真空隔离层，使摄像头与高温、高压隔离，镜头上增设特殊的活性膜，可保持镜头的清洁，防止油污。

In this basement,the downfaulted volcanic basins were divided into several volcanic sub-basins by volcanicity features and it's relation with crustalfault.

在此基础上，依据火山活动特点及其与壳断裂的关系又将其划分为若干个亚盆地。

This table has the 36 * 37 mm platinum watchcase size, showing a perfect harmony of the visual effects, they should wear eye-catching on the wrist rather unique, with a crocodile leather strap can bring out its noble and elegant.

此表有36 * 37毫米大小的铂金表壳，呈现出的视觉效果完美的和谐，应戴上醒目的手腕颇为独特的鳄鱼皮表带，可以带出其高贵典雅。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。