查询词典 rock cycle

It is proposed that using Xuejiping formation suitable for the stratum corresponding to the magmatic rock belt of Xuejiping cycle, representing age of Early-Middle Triassic.

重新认识了本区的地层系统，建议将雪鸡坪旋回岩浆岩带对应的地层使用雪鸡坪组，代表时代为早、中三叠世。

Based on the evolution mechanism of microcracks in fractured rock mass which experienced temperature cycle and using scanning electron microscope, the fracture mesostructure investigation of heated marble was conducted.

从经历温度循环的裂隙岩体的微裂隙扩展机制研究入手，采用SEM仪器进行了各温度下大理岩断口细观结构试验。

The CL data file can be converted to NC code with NC post module of Pro/E, which can shorten design cycle of tricone rock bit, improve design quality and enhance the competitive capacity and innovative ability of enterprises.

在Pro/Engineer环境下首先由软件建立钻头牙轮的三维实体，然后应用Pro/NC模块完成了牙轮内圆孔的粗、精NC加工，生成了CL刀具路径数据；完成了牙轮外圆的粗、精NC加工，生成了CL刀具路径数据，同时完成了对粗、精加工两个序列的合并；通过本研究产生的CL文件经过NC post模块可生成数控机床的控制代码，从而可以缩短三牙轮钻头的设计制造周期，提高产品的设计质量，提高企业的技术创新能力和市场竞争能力。

Steep seam; rock burst; cycle pressure

急倾斜煤层；矿压；周期来压

It studies the variations of deformation modulus, P wave velocity and acoustic emission in the process of rock fracture by cycle loading. Further, it is considered that the occurrence of earthquake outside Lijiang seismic area made the forced process changed, therefore, the Lijiang M7 earthquake came later, the impending precursory anomalies became unclear or complicated, and the magnitude decreased.

用循环加载研究岩石破裂孕育过程中变形模量、纵波速度和声发射的变化特征，进而探讨认为丽江地区外部地震的发生使受力过程发生了变化，从而使丽江7 级地震延迟发生，也使临近地震的前兆异常不明显或更复杂，并使丽江地震震级减小。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。