双重作用的

The first batch cracks of concrete bodies in South China had been caused by temperature stresses of cement hydration heat.While the double-action of (1) expansion stress of concrete and (2) temperature stress of day and night's difference of temeperature had been mainly the cause of cracks.

在南方地区，混凝土墙体拆模后的第一批裂缝是由于水泥水化热引起的温度应力造成的，而混凝土收缩引起的收缩应力与昼夜温差引起的温度应力的双重作用，则是导致后续裂缝的主要原因。

And some knowledge of grid topology is also introduced. The nucleation of condensative steam in the whole flowing field has been displayed. Furthermore, the characteristic of two-phase complex flow is analyzed. In the stationary blade's passage, the flowing status is stable relatively. The steam expanding is comparatively relaxing and the nucleation area of steam is small. In the moving blade's passage, the expanding of steam is tempestuous relatively because of dual-velocity effect; the degree of condensation of steam is considerably distinct.

最后，对有凝结的蒸汽在三维叶栅中的流动进行了模拟，得到了蒸汽凝结流动在整个流道内的流动情况，分析了这种两相复杂流动的特点，在静叶内，流动状态基本稳定，蒸汽膨胀较为缓和，发生凝结的区域很小；在动叶内，由于双重速度的作用使得蒸汽膨胀较为剧烈，相对蒸汽凝结程度比较大。

Land use type is the outcome of duple influence of nature and human activity, which possessing scrambling, relative instability and complexity, and it can be discussed by fractal theory. Application of fractal theory in land use structure involve in the calculation of fractal dimension of land use type, research method and fractal description of change of land use structure, fractal model of region landscape and so on, but fractal mechanism of spatial diversity of land use type is rarely reported.

土地利用类型是一种在自然和人类活动双重作用下的产物，具有不规则、相对不稳定性和复杂性特征，可以利用分形方法进行探讨；分形理论在土地结构研究中的应用涉及土地利用类型分数维的计算、土地利用结构分形研究方法、土地利用结构及其动态变化的分形描述、区域景观结构的分形模型等方面；但土地利用类型的分形机制的空间差异研究少见报道。

The results showed that the compound antiseptic-antibiotics which were composed with sorbic acid, BCM and doxycycline, not only improved the antiseptic ability of the artificial diet, but treated the septicaemia and muscardine very well with the effect of more than 90 percent.

作者以小蚕生长发育及人工饲料保质期为指标，对多种防腐剂、防霉剂及抗菌素在人工饲料中添加效果进行了比较，筛选出由山梨酸、BCM 及强力霉素组成的复合型防腐抗菌剂，不仅明显提高了人工饲料的防腐能力，而且对蚕的败血症和僵病的治疗效果均达到90％以上，具有防腐和防病的双重作用。

On the one hand, the inflammatory cells and inflammatory mediators phagocytize necrosis cells and impaired cell debris; on the other hand, they activate muscle satellite cells (locate among the basilar membrane and sarcolemma, and in dormancy state when quite) by secreting growth factor to proliferate to form new myotube cells which develop muscle fiber, repair impaired muscle fiber and accomplish muscle regenerative process.

炎症因子在损伤部位发挥着双重作用，一方面吞噬坏死细胞和损伤的细胞碎片，另一方面通过分泌生长因子激活肌卫星细胞(安静时处于休眠状态的，位于基底膜和肌膜之间)，使其增殖形成新的肌管细胞进而发育成肌纤维，修复损伤的肌纤维，完成肌肉的再生过程。

Through the comparison of different conditions in multi-angle repeated test, we observe the disaccording path of risk preferences. The main content of this thesis are as follows. Firstly, we design 2 sessions of experiments to find the impact of the softening budget constraint and the form of endowment on the risk preference. Besides, this thesis also includes several experimental comparative studies, focusing on the dynamical inconsistency of risk preference as well as its drifting path.

主要包括：首先设置预算软约束与风险偏好基础实验，考察影响投资者决策的主要因素，观测预算约束的软化和初始禀赋形式，对投资者预期及风险偏好的影响；其次，设置多期平面投资下的风险偏好实验，考察风险偏好是否存在着动态不一致现象，以及不同被试者的风险偏好漂移路径；最后，设置动态追加投资下的风险偏好实验，观测沉没成本、及与预算软约束的双重作用对风险偏好动态变化的影响。

Since the last days of the Middle Ages the creation of an intellectual aristocracy has been, so to say, the spiritual purpose of civilization side by side with its material purpose of supplanting the aristocracy of status by the aristocracy of wealth.

中世纪末开始，在文明所包含的精神目的、物质目的的双重作用下，精神贵族出现了，凭物质财富而赢得特权的人取代了传统上具有显赫地位的贵族。

Disulfiram has a dual effect, he noted. It reduces the craving for cocaine that usually occurs 15 minutes or so after the "high" is over. It also enhances the unpleasant nervous paranoia that is seen in about half of cocaine users.

他表示，disulfiram具有双重作用，这个药物降低对古柯碱的渴望，这通常发生在用药的15分钟之内或是因此造成兴奋的感觉过去；有半数使用古柯碱的病患会产生不愉快且紧张的感觉。

It analyses historically the factors for promoting the development of traditional art of indoor display and at a angle of modern design, it also analyses the theory and design of "system "and " place " from "Yi Jia Yan House Furnishing and Articles" which was a famous article concerning furnishing art of traditional house writte.

文章将渔关于传统住宅室内陈设艺术的论著——《一家言居室器玩部》中陈设品的&制度&和&位置&理论与设计作为评析对象，站在现代设计的角度，结合艺术理论和系统观点，以发展的眼光重新认识李渔的传统住宅室内陈设艺术理论与设计，总结其艺术风格、设计作风及艺术精神，进而提出了运用现代科学技术新观念和新技术手段，在传统与现代化的双重作用下，发展中国室内陈设艺术的新课题。

It has tons of safety features such as helical blades and dual-fulcrum, main pressure-bearing points lying on the two sides, the external framework of the wind wheel playing a dual-protection role for the safe operation of the wind turbine.

它吨的安全功能，如螺旋刀片和双支点，主要压力，低洼轴承点上，双方的外部框架内的风轮发挥了双重保护作用的安全运行的风力发电机。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐