查询词典 dioxide

In recent years, has introduced a nano-titanium dioxide containing inorganic antimicrobial Ag-Cu nano powder materials, products by DAYANG, Anhui Provincial Health and Epidemic Prevention Station, such as the detection of authoritative department, in a composite indicator that the leading domestic level.

几年来，先后推出了纳米二氧化钛、载银铜无机抗菌粉等纳米材料，产品经中科大、安徽省卫生防疫站等权威部门的检测，认定综合指标处于国内领先水平。

Carbon dioxide is stored and transported as a liquefied compressed gas.

二氧化碳是以液态压缩气体的方式储存和运输的。

Capturing and compressing carbon dioxide may increase the fuel needs of coal-fired power plants by more than 25%.

二氧化碳的收集和压缩有可能会使燃煤电厂的燃料需求增加25%。

Objective: To know content of sulfur dioxide and Confect product of dried lily and apricot meat to give reasonable suggestions.

目的：对送检的百合干、杏肉等蜜饯制品进行亚硫酸盐检测，以了解其二氧化硫含量，并提出合理建议。

The government's complaint, filed with the consent decree, alleges that Chemtrade and Marsulex made modifications to their plants, which increased emissions of sulfur dioxide without first obtaining pre-construction permits and installing required pollution control equipment.

政府通过控诉和提交同意判决书，责令Chemtrade和马苏莱对那些没有首先获得预建筑许可证以及安装所需的污染控制设备的工厂作出整改。

Large amount of carbon dioxide will contaminate the air.

大量的二氧化碳会污染空气。

The invention discloses a preparing method of bacillus alcaligenes strain Alcaligenes sp., CCTCC No.M206121 of degraded o-nitrophenol, which comprises the following steps: allocating inorganic salt culture medium with dibasic sodium phosphate, monobasic potassium phosphate, manganese sulfate, copperas, addex-magnesium, calcii chloridum, blue copperas, white copperas and hydrogen dioxide solution; adjusting pH value; sterilizing under high temperature; enriching bacterial; sampling from sludge; allocating suspending liquid with soil sample and inorganic salt; seeding into ortho-nitrophenol fresh organic salt culture medium with finite volume seeding quantity; keeping the temperature; culturing on shaker; getting enriched culture; separating and purifying enriched culture in LB solid culture medium.

本发明公开了一种降解邻硝基酚的产碱杆菌菌株及制备方法，产碱杆菌为Alcaligenes sp。，CCTCC No.M206121。其制备步骤是：首先是配制无机盐培养基，成分为磷酸氢二钠、磷酸二氢钾、硫酸锰、硫酸亚铁、硫酸镁、氯化钙、硫酸铜、硫酸锌和双蒸水，调pH值高压灭菌；其次是菌种的富集，从污泥中取样，将土样与无机盐培养基配制成悬浮液，将悬浮液以一定体积接种量接种到含邻硝基酚的新鲜无机盐培养基中，恒温，摇床培养，获富集培养物；第三是将富集培养物在LB固体培养基中分离和纯化。

As the sample of Yuanliangshan tunnel in Chongqing-Huaihua Railway, based on the full analysis of groundwater specimens, five chemical equations are designed to calculate evaluating data by the relation of activity, equilibrium constant and Gibbs free energy. According to the two criterion of partial pressure of carbon dioxide and reaction direction, the result calculated shows the groundwater has weak corrasion to carbonate rocks, which should be avoided to do harm to tunnel.

以渝怀线圆梁山隧道为实例，通过隧道内地下水取样进行了全分析，其中CO(上标 2-下标 3)离子作为"中间过渡态"离子，由于只存在微小量未被检出；使用水质分析结果数据设计了五个化学反应方程式，通过活度、反应平衡常数及吉布斯自由能之间关系进行热力学计算，依据二氧化碳气体分压P(下标 CO2)与反应进行两个方向化学反应判据开展分析，结果表明地下水具有弱侵蚀性，在隧道工程中应避免其引起危害。

Soil respiration response to different stages of vegetation restoration was determined via closed system measurements of carbon dioxide and selected factors affecting the correctitude and sensitivity of soil respiration. Eight different soil samples under different vegetation restoration stages were separately collected at 0~20 cm and 20~40 cm soil depth in spring and summer and both fresh and air-dried samples analyzed.

为探讨黄土丘陵区草地植被自然恢复过程中土壤微生物活性的变化特征及其影响因素，采用"时空互代"法采集宁夏云雾山自然保护区8个不同植被恢复年限的春、夏两季0~20cm和20~40cm的土样，用室内密闭静态培养－碱液吸收法测定了新鲜和风干土样的基础呼吸。

The whiteness of cristobalite is up to above 95%, when using in coating and paint, a part of titanium dioxide can be substituted to lower the production cost.

方石英的白度达95%以上，在涂料、油漆中使用，可取代部分钛白粉，降低配方成本。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。