查询词典 oxidizers

Separate flammable s or combustibles from oxidizers by at least 20 feet or a half-hour firewall.

把易燃或可燃物和氧化物隔开至少20英尺或半小时的防火墙。

O2 g ·Separate flammables or combustibles from oxidizers by at least 20 feet or a half-hour firewall.

把易燃或可燃物和氧化物隔开至少20英尺或半小时的防火墙。

The SHS was carried out using NaN3 as a reducer; and poly (C2F4), hexachloroethane (C2Cl6) and hexachlorobenzene (C6Cl6) as three various oxidizers.

采用还原剂NaN3和三种不同氧化剂－聚四氟乙烯、六氯乙烷和六氯苯，实施了SHS制备。

After analyzing the ingredient of the imported exothermic/insulating riser sleeve, three sorts of commonly used sylvite oxidizers was selected and the influence of their mixture ratio on the ignition time, exothermic duration and the exothermic power of the riser sleeve was investigated.

由于氧化剂对发热保温冒口套的发热性能有着决定性的影响，笔者在分析了进口商业用发热保温冒口套组成的基础上，选择了三种钾盐氧化剂，研究了这些钾盐氧化剂不同加入量对发热保温冒口套的点燃时间、发热持续时间及发热功率的影响。

Results showed that in the water body of Xizi Lake, annual average of culturable planktonic ammonifiers and nitrogen fixers were 510 and 236 CFU/mL, respectively; Ammonia oxidizers, nitrite oxidizers, nitrate reducers and denitrifiers were 8.5, 16, 587 and 16 MPN/mL, respectively; Inorganic phosphate solubilizing bacteria (1PB) and organic phosphorus mineralizing bacteria were 89 CFU/mL and 37 MPN/mL, aerobic and anaerobic cellulose decomposers were 7 and 5 MPN/mL, respectively.

水体中可培养异养细菌和固氮菌的年平均值分别为510和236CFU／mL，氨氧化细菌、亚硝酸氧化细菌、硝酸盐还原菌和脱氮菌的数量分别为8.5、16、587和16 MPN／mL；无机磷和有机磷分解菌分别为89 CFU／mL和37 MPN／mL；好氧性纤维素分解菌和厌氧性纤维素分解菌只有7和5 MPN／mL。

Dissimilatory arsenate-respiring prokaryotes can reduce As to As,chemoautotrophic arsenite oxidizers and heterotrophic arsenite oxidizers can oxidize As to As.

砷是一种有毒元素，其毒性早在2000多年前就被人们所认识和利用。

The nemeses for PP are strong oxidizers, such as the hypochlorites and higher concentrations of sulfuric, nitric, and hydrofluoric acids.

对PP具有破坏作用的是强氧化剂，如次氯酸盐，以及高浓度硫酸、硝酸和氢氟酸。

The main research now is focused on the polymerization of difluoramino substituted oxetane monomers, the preparation of neopentyl difluoramino nitrato plasticizers, and the molecular design and synthesis of cyclic N2 nitramino geminal difluoramino oxidizers.

目前该领域的研究工作主要集中在二氟氨基取代环氧丁烷聚合物合成，新戊基二氟氨基硝酸酯增塑剂制备，以及环N2硝胺基偕二氟氨基氧化剂的分子设计与合成上。

It can also explain competitions for space and oxygen between ammonia-oxidizers and nitrite-oxidizers and their evolution in nitrifying biofilm.

模型很好地解释了硝化生物膜中氨氧化菌与亚硝酸氧化菌对空间和氧的竞争，以及它们在生物膜中的演变关系。

The experimental results indicate that the nitrite oxidizers are more sensi-tive to free ammonia than ammonia oxidizers in the wastewater.

结果表明，在高游离氨条件下，硝酸菌比亚硝化菌对游离氨更为敏感，反应体系中亚硝酸盐的平均积累速率远大于硝酸盐的平均积累速率。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。