以期...

To better understand the roles of LsrA protein in nodulation, a series of analyses of nodules using scanning electron microscopy, genetic and biochemical approaches have been carried out. Our analyses suggest that the lsrA1 nodules contain bacteroids in the invasion and establishing zone only. The lsrA gene expression is active early in the invasion zone and activated later than bacA genes. The lost of LsrA protein dramatically reduced the expression of nifA and fixK, and completely blocked the expression of the nifH gene for nitrogenase. LsrA protein functions early in the bacteroid development and it is essential for the development nitrogen fixing bacteroids.

前期的工作中，苜蓿中华根瘤菌Rm1021中90个候选LysR基因已经被定向插入突变，并筛选在自生生长时期、共生生长时期的表型，以期寻找更多在自生状态或共生固氮中有功能的LysR转录因子。1 针对前期鉴定出的共生固氮必需的lsrA基因，我们应用了一系列扫描电子显微镜技术、生物化学、分子遗传学等方法，发现lsrA基因主要在根瘤侵染区开始表达，表达时序也在侵染阶段左右，但晚于bacA基因表达；LsrA蛋白缺失后根瘤固氮区中缺乏具有固氮能力的类菌体，nifA和fixK基因的转录水平降低，nifH基因的转录被完全阻断，因此LsrA蛋白为根瘤发育所必需，是新的根瘤发育信号传导途径成员。2 通过表型筛选我们鉴定了苜蓿中华根瘤菌的oxyR基因，并研究了它的调节特性。oxyR突变后，苜蓿中华根瘤菌对过氧化氢敏感性提高，适应性降低。

Each baktun was its own Historical Age, within the Great Creation Cycle, with a specific destiny for the evolution of those who incarnated in each baktun.

每白克顿是它自己的历史时代，在伟大的创造周期，以期为这些谁在每个白克顿所体现的发展具体的命运。

As Gauti Eggerstsson recently explained in the American Economic Review, Hoover's adherence to the gold standard, and his determination to keep government small and raise taxes to try to balance the budget, created a rational expectation of continued economic contraction, dampening the economy's animal spirits.

正如 Gauti Eggerstsson 最近在《美国经济评论》上解释的那样：胡佛，他坚守"金本位"；他坚定信心，保持"小政府"（这也就没有凯恩斯主义的"刺激"了）；他提高税收，以期平衡预算，从而创造了"经济持续收缩"的理性预期，沮丧了经济的动物精神。

In order to raise bank credit level of analysis, so as to prevent and defuse financial risks.

以期提高银行信贷分析水平，尽量作到防范和化解金融风险。

The remains of the 1587 playhouse were found in an excavation two decades ago and the charity that safeguards the site is now raising funds to return the Rose Theatre site to its rightful status at the heart of Bankside's cultural life.

这座1587年的戏院遗址在20年前的一次考古挖掘中发现。负责保护这片废墟的慈善基金目前正在筹集资金，以期将玫瑰剧院遗址恢复到它作为Bankside 文化生活中心时期的原貌。

A In this research, the barrier layer of methane plasma was first used in the polymer surface flame retardancy.

本研究首次将炭阻挡层的概念用于聚合物表面阻燃的研究中，以期获得阻燃效果。

Further, this paper examines how the regulator should design the base price vector in order to enforce the use of the Ramsey price structure.

另外，本文探讨了管制者应该如何设计初始的价格向量，以期能厉行采用蓝氏订价的价格结构。

Adjustments of Second-hand housing policy reduce the deal cost, boosting buyers' expectations; In addition, such change may increase the liquidity of housing, which will speed up investment in new housing and shops. However, the price continue to drop, especially when the new year is coming, more shop investors keep waiting and seeing due to the financial crisis, macro news. Basing on the demand point of view, some demand for living improvement delay the bargain, so did demand for investment due to bad profit-making. As a result, the demand is difficult to start up, while the supply funds is not sufficient, therefore such commercial real estate enterprises will be out of the market due to their inability to meet the finance crisis. Under competitive pressures, the developers will pay more attention to products quality and products differentiation with a view to compete in the market to get a dominant position.

二手房政策的调整降低了购房者的购房成本，刺激了购房期望；另外，二手房政策的改变可能会增加房源的流动性，这样也会加速新房的销售，商铺投资逐渐活跃，但价格表现却成下行趋势，尤其是年关临近，在金融危机面前，商铺投资者多持币观望，从需求者的角度讲，部分改善型需求和投资型需求的购买行为将向后推迟，炒房者将因投机能力下降而不同程度地退出市场，另外，需求难以启动，供给方资金链紧张，部分自有资金不充裕的商业地产企业将面临因无力融资而退出市场的风险，企业因竞争压力大，将更加注重开发产品的品质，提供差异化的产品，以期在市场竞争中占得优势地位。

Positioning rural infrastructure is thought to be closely related with the strategy of environmental planning.

中国新农村基础设施建设是解决"三农"问题的关健，农村基础设施的定位与环境规划战略息息相关，如何进行新农村基础设施的环境规划，避免环境恶化等矛盾激化，增强现代技术的集聚效益和自然历史的传承，对自然环境和社会环境科学规划，分析中国新农村环境规划与塑造农村基础设施的内在联系和两者的交互作用关系，提出选择适应的中国新农村基础设施需求进行环境规划理念创新的对策与建议，以期为中国新农村基础设施的环境规划的发展提供科学的依据，让农村资源通过农村基础设施的环境规划战略的有机结合，得到最大限度地和谐发展和可持续利用。

So, he puts on a big show, hoping to drive the bear off.

于是它表现得很夸张，以期将灰熊赶走。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。