| 1. | The principal directions corresponding to two distinct principal strains are orthogonal .
和两个不同的主胁变相对应的主方向是互相正交的。 |
| 2. | The shading indicates the direction of some grain or fibers, i.e. a principal direction of elasticity .
阴影部分表示一些木纹或纤维的方向，即弹性的一个主方向。 |
| 3. | The principal direction of small-scale movement is from a shale or clay to a sandstone or other permeable bed .
小范围运动主要从页岩或粘土岩向砂岩或其他渗透性地层中运动。 |
| 4. | Principal direction of oscillation
竹荡方向 |
| 5. | Principal direction of glide
脂移方向 |
| 6. | The in _ cavity residual stress in first principal direction result shows the forces left in the part after ejection in the orientation direction
第一方向残余应力?产品顶出时在配向方向上的残余在产品中的力。 |
| 7. | Union with phase - shift moir interference method may obtain displacement information of any points around the hole , because the orthotropic materials does not occur pull - cut effect in the elastic principal direction , if some displacements of specific points are read , the residual stress value can calculated conveniently
由于正交各向异性复合材料在弹性主方向不发生拉剪（或剪拉）耦合效应，所以通过适当读取孔边特殊点的位移，可方便地得到残余应力值。 |
| 8. | In this paper analyzing reservoir depositional features , lithologic features , developing law of sand body , reservoir physical properties , microporosity structure and the principal direction of maximum horizontal stress of leng 43 block , some factors affecting the effect of development and choice of development ways are studied
本论文从研究储层沉积特征、岩性特征、砂体发育规律、储层物性、微观孔隙结构特征、最大水平主应力方向等内容入手，分析储层特征尤其是储层非均质性对开发效果和开发方式的影响，并针对下步转换开发方式进行了研究。 |
