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Though the microorganisms capable to metabolic H〓S and CH〓SH respectively are Thiobacillis, their physiological characteristics are different. The former is acidophile, the optimum range of pH for which is 1～4; whereas, the latter is neutrophile.

代谢H〓S和CH〓SH的微生物菌群从形态上均有杆状硫细菌的特征，但两种菌群的生理特征不同，代谢H〓S的硫杆菌属嗜酸性微生物，代谢CH〓SH的硫杆菌属嗜中性微生物。

The results show that this strain was a typical acidophile with optimal growth pH being 2.0 for hypha and pH 3.0-4.0 for the spore germination. Peptone was the most suitable nitrogen source which helped produce xylanase induced by xylan during stationary phase. The resultant xylanase reacted best at 50℃-55℃ and pH 3.5, and had activities 70% after 60 min maintenance under optimum reaction conditions.

结果表明：实验菌株嗜酸，菌丝生长最适pH为2.0，孢子萌发生长适宜pH为3.0-4.0；木聚糖诱导菌体在生长稳定期大量产生木聚糖酶，蛋白胨是菌体产酶的适宜氮源；菌株所产木聚糖酶属于酸性木聚糖酶，反应最适pH3.5、最适温度50℃-55℃，在最适反应条件下保温60min，残余酶活仍接近70%，适用于较强酸性的高温加工环境。

This paper introduces a method of computer aided design on optimum acidproof property of enamel products by mathematical programming.

介绍一种用数学规划方法进行搪瓷产品耐酸性能最佳的计算机辅助设计方法。

These results have important implications for the treatment of patients with acromegaly and also raise issues as to the optimum hydrocortisone treatment regimens for ACTH-deficient patients.

这些结果为肢端肥大症患者的治疗提供了重要的借鉴，并要求为ACTH缺乏的患者寻求更为合理的氢化可的松用药方法。

To insure the safety and stabilization of freeway build in swelling soil area, we discussed soil property, optimum water content, compactness control, drying-wetting cycle action and control of differential settlement and so on. And brought out corresponding treatments for different situations.

为保证在膨胀土地区修建高速公路的安全稳定，主要从土的性质、最佳含水量与压实度控制、干湿循环作用的影响以及路堤不均匀沉降的控制等因素进行探讨，并针对不同情况分别提出相应的处理措施。

The optimum conditions of acyl chlorination and esterification were investigated as follows: molar ratio of DPR to PCl3 1∶0.33, reaction temperature 50℃ and reaction time 3 h.

实验结果表明：温度对于DPR酰氯化反应的影响较小；而原料物质的量之比对反应程度的影响较大，PCl3用量的增加有利于反应程度的增加。

At present the mechanism of endangered species mostly confined to the morphology point of view, few physiological point of view of ecology, the lotus leaf fern Adiantum growth conditions of the study also stay in more qualitative analysis, there are few quantitative analysis of its optimum growth environment , The experimental use of morphological and physiological ecology of the idea and will use the components of the research methods, to be a long time to further explore their own independent development of plant taxonomy, morphology, physiology, ecology and other subjects the intrinsic link between , With a view to a new high on the survival of endangered species, adaptation and evolutionary mechanism.

目前对物种濒危机理的研究大都局限在形态学角度，很少有生理生态学角度的研究，对于荷叶铁线蕨生长条件的研究也多停留在定性分析上，很少有定量分析其最适生长环境，本实验采用形态学与生理生态学结合的思想，并将采用构件理论的研究方法，拟进一步探讨长期以来各自独立发展的植物分类学、形态学、生理学、生态学等学科之间的内在联系，以期能在一个新的高度上探讨濒危物种的生存、适应对策和进化机制。

This study will be mainly through potted lotus leaf fern Adiantum seedlings and wire division to transplant fern, and then through the different light intensity and moisture content of the orthogonal to quantitative research lotus leaf fern Adiantum optimum growing conditions, and through Transplant Research Laboratory test pilot of the two species, competition between species to find lotus leaf fern Adiantum way to protect endangered mechanism and provide a theoretical basis.

本研究主要通过盆栽将荷叶铁线蕨的幼苗与铁线蕨进行分株移植，再通过在不同光照强度和水分含量的正交实验来定量研究荷叶铁线蕨最适生长条件，并且通过实验室移栽试试验探究两物种之的种内，种间竞争关系为寻找荷叶铁线蕨濒危机理和保护途径提供理论依据。

The Frechet derivative of the cost function is determined via the solution of an adjoint partial differential equation, and the boundary shape is then modified in a direction of descent. This process is repeated until an optimum solution is approached. The advantage is that the cost function variation is independent of the flow field variation, with the result that the gradient of cost function with respect to arbitrary number of design variables can be determined without the need for additional flow-field evaluations. So each design cycle requires the numerical solution of both the flow and the adjoint equations leading to a computational cost roughly equal to the cost of two flow solutions.

虽然他们的研究成果大多数都可以在公开性文献上看到，但是其中一些具体的细节问题的处理方法却没有透露，比如：伴随方程如何离散求解才能减小最终梯度计算中的误差，使得设计过程有效地进行；伴随方程与流动方程的边界条件是不同的，如何合理地处理伴随方程的边界条件，才能推动设计过程朝着设计目标而发展；在减阻问题中目标函数如何定义，求解梯度的具体数学公式如何推导，如何通过数值方法来实现它们等。

In the paper, through the compaction test, the optimum moisture content and maximal dry density of aeolian sand are determined.

本文通过击实试验，确定了风积沙的最佳含水量和最大干密度。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。