使发生

Layered double hydroxides are sort of anionic layered materials with anion exchanging ability and show wide application prospects in the fields of catalysis, pharmaceutical, environmental protection and functional additive agents etc.

水滑石类化合物是一类阴离子型层状功能材料，因其层间阴离子的可交换性，调整层板结构和组成发生变化，从而使之在催化、制药、环保、功能助剂等领域显示出广阔的应用前景。

To ensure close adhibition of connecting board, screwing should start from center to outside, that is, screwing from enlarged center to skirting area. To avoid coating's influence on tensile force, screwing work should be finished on one day. And to decrease prestress' difference of high-tension bolt, bolt screwing runs in two steps: primary screwing and final screwing. For large-scale joint with great amount of bolts demands a second screwing.

为使被连接板叠密贴紧，应从螺栓群中央顺序向外施拧，即从节点中刚变大的中央按顺序向下受约束的边缘施拧，为防止高强度螺栓连接副的表面处理涂层发生变化影响拉力，应在当天终拧完毕，为减少先拧后拧的高强度螺栓预拉力的差别，其拧紧必须分为初拧和终拧两步进行，对于大型节点，螺栓数量较多，则需要增加一道复拧工序。

TILT ROTORCRAFT : An aerodyne which derives the whole or a substantial part of its lift for vertical or hovering flight by tilting rotor upward to a position substantially vertical, and in forward flight derives its lift from rotors and/or wings, and is capable of autorotation in the event of power failure.

倾斜旋翼飞机：一种旋翼机，垂直或悬浮飞行时，整个或其中相当一部分之爬升力源自倾斜旋转翼使上升到一个极度垂直的位置，而在向前飞行时，爬升力源自旋转翼和/或机翼，并有能力在发生动力供应中断时自动旋转。

This method represents the virtual objects in Euclidean space instead of in affine space, which is consistent with the popular graphics rendering tools such as OpenGL and is more common in practice. A new classification based local and global tracking strategy to match features between the reference image and the currently frame directly is presented, which enables the augmented reality system working effectively even under large changes of viewing angles. A novel affine coordinate system definition method based on a collection of feature points is also proposed, which makes the tracking method effective even when not all the reference points are detected during the whole process, as long as there are at least four pairs of reference points correspondences.

该方法以仿射变换为桥梁来建立欧氏空间下的摄像机坐标系与世界坐标系之间的变换关系，它与OpenGL等当前流行的图形渲染工具一致，具有更强的通用性；采用基于分类的自然特征匹配策略，能够在视角和视点发生大幅度变化情况下依然正常工作；提出基于特征点集合的仿射坐标系定义方法，使增强现实系统在最小配置下只需4点追踪成功即可完成注册，比需要6点的透视投影方法具有更好的健壮性和精确性。

Objective To compare Etest and agar dilution method for testing susceptibilities of Neisseria gonorrhoeae to four antibiotics.

由于抗生素的广泛使用和临床上不规范的治疗，使淋球菌对抗生素的敏感性迅速发生改变[1] 。

Suddenly, combine this signal in 0.01 control for inside speed delivering to safe air sac systems computer.

控制电脑。电脑在经过分析确认之后，立即引爆气囊包内的电热点火器，使其发生爆炸，这一过程一般只需0.05秒左右。

P;suddenly, combine this signal in 0.01 control for inside speed delivering to safe air sac systems computer.

控制电脑。电脑在经过分析确认之后，立即引爆气囊包内的电热点火器，使其发生爆炸，这一过程一般只需0.05秒左右。

The computer set off immediately after confirming through analysis the air sac electricity in the pack heat light the firearms( give or get an electric shock namely thunder tube), making its occurrence exploded, the general in this process needs 0.05 or so.

电脑在经过分析确认之后，立即引爆气囊包内的电热点火器，使其发生爆炸，这一过程一般只需0.05秒左右。

Results show that during the snowstorm disaster, under the large scale background with "trough in south and ridge in north", strong cold air caused by prevailing northerly wind in northern Asia wedged into low level atmosphere over Southeast China and formed a "clod cushion". At the same time, warm-wet air was also transported to Southeast China by southerly wind. The vertical shear of winds from cold to warm airflows produced strong upward motion and then, the warm-wet air over the cold air wedge was driven to rise. Finally, the structure of "warm cover" and "cold cushion", as well as corresponding vertical circulation over the converging frontal zone came into being.

研究结果表明，灾害发生期间，中国北方中低层大气盛行偏北气流，使较强的偏北冷空气"楔入"中国东南部低层大气，构成低层"冷垫"，同时偏南暖湿气流源源不断地将大量水汽输送到中国东南部，冷暖气流交汇及其垂直切变导致强烈的上升运动，构成了"冷垫"上空的"暖盖"及"南槽北脊"反位相环流汇合锋区的垂直环流结构。

The obvious change of properties of alkali soil is due to the decrease of soluble salt content after the growth of P.

星星草使碱化土壤化学性质发生较明显的变化是降低了可溶性盐含量。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。