室温

The invention relates to a preparation method of epsilon-MnO2 layered structure nano-sphere comprising the following steps: adding potassium persulphate, manganese sulphate, ferric nitrate and concentrated sulfuric acid into hydrothermal reactor, charging deionized water and fully stirring, natural cooling the mixture to room temperature after hydrothermal reaction for 1-24 hours at 110-200 DEG C, washing and drying the product to obtain hexagonal crystal epsilon-MnO2 layered structure nano-sphere with a stable structure and uniform grain size.

一种ε-MnO 2 层状结构纳米球的制备方法，将过硫酸钾，硫酸锰，硝酸铁，浓硫酸加入水热反应釜中，加入去离子水充分搅拌后，在110-200℃水热反应1～24h后自然冷却至室温。得到的产物经洗涤干燥即得到结构稳定，粒径均匀的六方晶型的ε-MnO 2 层状结构纳米球。

Experimental results show that there is no evidence of catalytic effect of stainless steel packings.

为了弄清这一问题我们考察了不锈钢丝网和聚丙烯丝网填料柱中空塔速度和NO_x氧化度对NO_x吸收的影响，实验结果表明，在室温条件下不锈钢对NO_x的吸收未显示出催化活性。

Thermoprproperties of 7 nucleators -CaCl2·6H2O composites such as borax, SrCl2·6H2O,Ba2·8H2O were researched with gradually cooling method and TGA-DSC under room temperature cooling,open system and icewater cooling, closed system.

用步冷曲线法和TGA-DSC联用研究了室温冷却开放体系和冰水浴冷却封闭体系两种工况下硼砂、SrCl2·6H2O、Ba2·8H2O等7种成核剂-CaCl2·6H2O复合体系的储热性能，探讨了工业级CaCl2·6H2O原料中主要杂质NaCl和MgCl2对成核剂成核作用的影响。

Osteoblasts were collected from the rabbit fetus skull by collagenase digestion associated with tissue nubbles cultivation and cultured in vitro.

酶消化-组织块联合培养法体外培养胎兔颅骨成骨细胞：取新西兰大白兔胎兔颅骨骨块，制成2mm 2mm骨块，Ⅰ型胶原酶室温下消化。

And then the Ar flow rate is lowered to 90-110sccm, the temperature is increased quickly to 780-830deg.C, keeping the temperature for 40-60min, naturally cooling to room temperature under the Ar protective atmosphere, taking out of said ceramic ship, obtained is the four needle nanometer zinc sulfide in yellow and white colour on the substrate.

而后将Ar流量降至90～110sccm，并将炉子快速升温至780～830℃，保温40～60分钟后，在Ar保护下随炉自然冷却至室温，取出瓷舟，在硅基片上得到黄白色四针状纳米硫化锌。

Based on the solid phase/liquid deposition CdSe quantum dots were synthesized using selenium and cadmium-salt as precursor at room temperature. The TEM graph showed that the average size of CdSe QDs was ca.

以硒粉及镉盐为反应前体，通过固相/液相沉淀反应及室温乙二胺溶剂体系两种方法合成了平均粒径为8～10nm的CdSe量子点，以巯基乙酸修饰量子点使之可溶，并标记生物大分子－胃蛋白酶。

The electrically controlled refractive index in a nematic liquid crystal cell for switchable π/2 phase shifting and quarter wave plate of terahertz wave was demonstrated. We used the nematic LC, E7, which exhibits a birefringence of ~0.17 (0.2~1.2THz), useable at the room temperature range because of the wide nematic range -10?

我们研制了在兆赫辐射(1012 赫兹)波段，以电压控制其双折射系数的向列型液晶盒所制作而成的可调式π/2相位调制器及四分之一波片，我们使用了E7这种向列型液晶，在0.2~1.2兆赫这个波段，E7的双折射系数约为0.17，此外其适用的温度范围很大(摄氏-10°~61°)，能够操作於室温。

By low temperature (145K) deposition method, we prepared such flat Pb films on the Si (111) substrate over a wide thickness range (from 10ML to 32ML). The unique growth behaviors were investigated by RHEED, STM and ARPES. A critical thickness of 10ML is established, at which the atomically flat Pb films become stable at room temperature. Between 10ML and 20ML, the growth exhibits a quasi bi-layer growth mode. Above 21ML, a layer-by-layer growth mode was observed.

采用低温生长的方法（衬底温度145K），通过对生长条件的优化，我们在Si（111）衬底上制备出了具有原子级平整度的Pb 薄膜，用STM 和ARPES确定了其特殊的生长模式：室温下成膜的临界厚度是10ML，随后是一种双层生长模式，覆盖度高于21ML 时，薄膜生长基本上是层状生长的模式。

Room temperature up to standard, can be appropriately regulated radiator valve in order to achieve a comfortable, energy-saving.

室温达到标准，可适当调节暖气片温控阀，以实现舒适、节能。暖气漏水，先找控制阀门

Such specimens could not be remedied by the usual quench andtemper treatment, and re-solution treatment at high temperatures (980-1050℃)followed by rapid cooling to room temperature was necessary to modify the sizeand distribution of the boron-containing phase, with the consequence of improvingproperties and eliminating the shell-shaped fracture.

对于出现&壳层状硼脆断口&的50B钢，正常的调质处理不能恢复其性能。但在980—1050℃重新固溶处理并以较快速率冷却到室温则可以改变硼相的析出形态，并改变相应的断口形态，相应地性能也恢复或有所提高。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。