逆向

Especially the formation of reversal gradient of blood pressure before the dicrotic notch.

特别是逆向血压梯度的形成，认为动脉血流的惯性及左心室的舒张是重搏波切迹前短时期内近心端血压低于远心端血压的主要原因，在动脉中存在着惯性动能与压力势能之间的相互转化。

More chances of disappearance occurred in the responses to dorsal column stimulation than the responses in the dorsolateral side.

其中，以背索刺激引起的逆向反应的消失机率居多。

Compressed air breathing apparatus facepiece numerical design reverse engineering

空气呼吸器；面罩；数字化设计；逆向工程

In view of the facts that traditional graphical construction has less pertinence to stray light and tracing different incidence angle rays is fatiguesome and more likely to omit some rays, we proposed a reverse ray-trace method based on the ray reversibility. According to the method, a dot-matrix source was set at the image plane. Each dot emitted rays to fully cover the system aperture. A detector surface, large enough to receive all possible rays from the source, was set at object plane.

针对传统作图法设计遮光罩的针对性不强，且追迹不同入射角的光线繁琐、容易遗漏的问题，本文提出一种逆向追迹法，依据光的可逆性，在像面处设置点阵面光源，每一点都发出充满系统孔径的光束，在物面设置足够大的探测面，使之有充足的余量记录所有到达物方的光线，利用该方法可以在探测面上直观地区分出非成像杂散光。

The forward and backward reaction rate constants of ferulic acid conversion at 23℃ were found to be 5.194×10^(-6)s^(-1) and 5.360×10^(-6)s^(-1), respectively.

在23℃，阿魏酸转化反应正向和逆向反应速率常数分别为5.194×10^(-6) s^(-1)、5.360×10^(-6)s^(-1)。

Based on the theory of technical innovation and technical innovation diffusion elaborated, as well as fluxionary calculus and game theory, the thesis analyses corporation adoption with game theory in the process of technical innovation diffusion: analyzes in the situation of information symmetry and information asymmetry the gambling between the supplies and the latent users of innovation, discusses the mechanism of the phenomenon "reversion choice" with emphasis in the situation of information asymmetry, and also introduces signal transmission model and information screen model to realize Pareto improvement; at the same time it analyzes in the situation of complete rationality and limited rationality the gambling between the latent users of innovation.

依据已阐述的技术创新和技术创新扩散理论，以及微积分、博弈论等相关理论，对技术创新扩散中企业采用行为进行了博弈分析：分析了信息对称和信息不对称情况下创新供给者与创新潜在采用企业之间的博弈，重点讨论了信息不对称时&逆向选择&现象发生的机理，并引入信号传递模型和信息甄别模型以实现帕累托改进；同时分析了完全理性和有限理性情况下创新潜在采用企业间的博弈。

With distance from the lake,the Aerxiaote lake vegetation happened converse succession.From outside to inside,the structure of plant community was gradually simple,biological diversity was shrinking and halophytic vegetation had decreasing tendencies.From outside to inside,there were Aneurolepidium dasystachys,Phragmites australis,Suaeda salsa L.community.Succession tendency was from wetland and typical grassland vegetation to salinization and desertization vegetation.

阿尔肖特湖边的植被随着距湖面距离及地形的不同，植被发生逆向次生演替，自外向内具有植物群落结构逐渐简单，生物多样性逐渐降低、盐生植物逐渐增加有规律性变化趋势；植被由外至内依次形成了赖草、芦苇、白刺和盐地碱蓬群落梯度，其演替趋势是由湿地和典型草原植被向盐碱化和荒漠化植被过渡。

Ordered Sr_2CeO_4 nanowire arrays embedded in anodic alumina membranes were fabricated by a converse transport technique that precipitations were shaped into one dimension structure in the hexagonally ordered nanochannels of the AAM and changed into the Sr_2CeO_4 nanowire by the subsequent treatment.

以多孔阳极氧化铝为模板，采用逆向迁移技术，在模板的纳米孔道内反应形成一维纳米结构前驱体，再经后续处理，制得了Sr2CeO4纳米线。

Actually, Gao Bo has sunk into a gap characterized by hazy and imagistic rustic scenery, but at the same time he is experiencing another journey on his canvas: going against the lively and bright games of realism towards chaos, like the chess-piece erect people in his paintings. In this move towards chaos, Gao Bo's canvas becomes an absurd curtain opening on history - a portal opening to a time maze.

其实，在高波沉溺于漫不经心地虚构田园景色的间隙，同样他也在自己的画布上体验了另外一种精神的游历，从热闹醒目的现实游戏中逆向而行，如同那些伫立的棋子似的人物走向混沌，象荒诞的历史帷幕，既是沉落的黄昏，也是开启时间迷宫的魔洞。

Was a shallow tree, whereas a high density was distributed below 30cm. Reverse succession of wetland communities, generally, from Imperata cylindrical community, Tamarix chinensis community Suaeda salsa community to bare land. If the ground was perennial water and abundance of seasonal water , the reed community replaced Imperata cylindrical community Tamarix chinensis community and Suaeda salsa community.

逆向演替的湿地群落，一般由白茅群落、柽柳群落、翅碱蓬群落向光板地方向进行，但如果生境地势低洼，常年积水或季节性积水较多，白茅群落、柽柳群落、翅碱蓬群落由于不能忍受经常性的积水危害，会逐渐被芦苇群落取代。

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％。