无方向性

The metal ions form ionic bonds, which are nondirectional, with oxygen atoms that previously had been bonded rigidly to specific Si atoms.

金属离子与氧原子形成无方向性的离子键，而氧原子之前一直牢固结合在特殊的硅原子上。

The algorithm handles the objective function and constraints separately, and adopts both directional and random search mechanism. It can avoid falling into local optimal point, which may appear in previous bionics random algorithms due to uncertainness of some parameters and/or without guiding search direction.

该算法将目标函数与约束条件分开处理，采用兼具方向性和随机性的搜索机制，避免了已有仿生类算法由于一些参数难以确定和无引导性的搜索方向而陷入局部最优的问题。

It is unsupervised, undirected evolution.

它是无人监督的、无方向性的进化过程。

From the result of angular featureparameters,we could see that the arrangement degree along radial of softwood tracheid wasthe strongest,then was the vesselless hardwood of Trochodendron araioides and Tetracentronsinense,the other hardwoods are relatively weak.

从方向性特征参数值可以看出，在细胞径向排列程度上，针叶材管胞的径向排列程度最强，其次是无导管阔叶材水青树和昆栏树，其它阔叶材导管的径向排列程度较弱。

Based on the undirectional nature of Bluetooth and its characteristic of no need to aim at straight line in transmitting data, the master device can transmit data to slave devices more accurately.

蓝芽协定可以架构个人随意网路，以本身为master，利用蓝芽无方向性，也不需直线对准的特性，来传输资料，可以更加准确的传给其余slave装置。

Grading criteria: Grade 0 is normal. Grade Ⅰ is that the right forelimb bends. Grade Ⅱ is that the right forelimb grasped weakly when the tail is lifted. Grade Ⅲ is that the rat has no directivity in automatic action and circumrotates to right when the tail is lifted.

分级标准：0级：正常；1级：对侧前肢屈曲；2级：提尾时，对侧前肢抓力减弱；3级：自主运动无方向性，提尾时向对侧旋转；4级：自主运动时，向对侧旋转。

It is possible that domes or long walls may be created independently in the horizontal strata. Thus, synclines and anticline develop in different extent and may be distributed in space with different directions. Nevertheless, some of them may be arrangeddirectionally. Shown in the figure on the right

穹窿或长垣可以弧零零的产出于水平岩层之中，所以向斜和背斜不同等发育，而且空间展布常无一定方向性；有些穹窿或长垣也可稍呈有规律的定向排列。

The PILA white/grey rubber blanket features high abrasion and UV resistance as well as non-directional cutting. Its internal micro-porous structure, at the same time, makes it compressible and enables printing on rough surface of plastic containers.

PILA 白色/灰色橡皮布具有高度耐磨，耐 UV ，裁剪无方向性等特点，同时，内在的多微孔微观结构使其可压缩，易于在不平整塑料容器表面印刷。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。