查询词典 phosphorous

In 2003,on the whole the soils in Wujiang were little acid, pH from 6.40±0.38 to 5.40±0.55now, and the trend of acid was in Tailake region. The available phosphorous in Paddyfield were significantly lower than. the other five land use patterns. As a result,controlling the phosphorous output form vegetable field mulberry yard and other dryland might be more significant to control the non-point pollution in Tailake region.

吴江市土壤基本上属微酸性土壤，2003年耕地监测中土壤pH值由1982年的6.40+0.38变为5.40±0.55，可见近20年来太湖地区普遍存在的酸化趋势；在稻田、林地、桑园、菜地、果园、旱地六种常见的土地利用方式中，稻田土壤速效磷显著低于其它五种利用方式中；因此，在控制太湖地区磷的面源污染上，控制菜地、桑园和其它旱地土壤磷的输出可能更为迫切。

Many Chinese phosphorous chemical products production capacity and output in the world has become the first and second, phosphorous chemical power.

中国许多磷化工产品生产能力和产量已跃居世界第一和第二，成为世界磷化工大国。

Results indicated that both the amount of bacteria, epiphyte and actionmyces sharply and the amounts of acarina, collembolan and nematode were increased by application of organic fertilizer and the combined application of inorganic fertilizer with organic fertilizer for a longtime. Soil animal collembolan and nematode were significantly related to soil organic material and available phosphorous and available nitrogen. Acarina was significantly related to soil organic phosphorous, available potassium and available nitrogen.

结果表明：长期单施有机肥及其配施无机化肥，能显著增加土壤细菌、真菌和放线菌的数量，明显提高土壤动物蜱螨类、弹尾类、线虫类的数量，土壤动物弹尾类、线虫类与土壤有机质、有效磷、碱解氮呈极显著正相关；蜱螨类与土壤有机磷、速效钾呈极显著正相关；与土壤碱解氮呈显著正相关。

The available phosphorous activity was shown as that the available phosphorous activity was higher under conservational tillage methods in the soil surface (0-5cm).

土壤速效磷：保护性耕作措施有助于速效磷在土壤表层(0-5cm)中的积累。

Methyl-5-ethyl-2-thiouracil,m.p.211°,was prepared according to the direc- tions of Johnson and Baily.4-Methyl-5-ethyl-uracil,m.p.236°,was formed in a 81% yield from 4-methyl-5-ethyl-2-thiouracil by boiling the latter with an aqueous solution of monochloroacetic acid.4-Methyl-5-ethyl-uracil reacted with phosphorous oxychloride and phosphorous pentachloride,giving 4-methyl-5-ethyl-2,6-dichloropy- rimidine in a 79% yield.

14-甲基5-乙基-2，6-二氯代嘧啶曾用磷醯氯和五氯化磷与其相应的2，6-二羟基嘧啶作用制取。(2)4-甲基-5-乙基-2，6-二氯代嘧啶与醇钠作用，极易转变成4-甲基-5-乙基-2，6-二烷氧基嘧啶。(3)4-甲基-5-乙基-2，6-二甲氧基嘧啶和2-氧代-3，4-二甲基-5-乙基-6-甲氧基嘧啶在高温时重排成其稳定构型的的异构体：1，3，4-三甲基-5-乙基-2，6-二氧代嘧啶。

Caged bicyclic phosphorous quadridentate silicon complex ; phosphorous-functionalized silses-quioxane ; phosphorus/silicon synergistic effect ; epoxy resin

双环笼状四配位硅；双环笼状倍半硅氧烷；磷硅协同效应；环氧树脂

A novel type of caged bicyclic phosphorous functionalized silsesquioxane was synthesized from caged bicyclic phosphorous quadridentate silicon complex in the presence of tetramethylammonium hy- droxide. The product was confirmed by FTIR, 29Si MAS NMR, MS and XRD spectra.

以双环笼状含磷四配位硅为前驱体，四甲基氢氧化铵为催化剂反应得到具有高度对称结构的双环笼状磷酸酯取代倍半硅氧烷，通过红外光谱，29Si固体核磁共振谱，质谱和X衍射光谱等手段确定了产物的结构和晶型。

The effect of Scirpus mariqueter on phosphorous distribution in intertidal sediments was examined by measuring the phosphorous concentration in nearroot, meanroot and farroot sediments at different depths in three cores, with application of the theory of rhizospherical microbe.

以海三棱藨草为例，运用实验模拟的方法，通过根际、近根和远根沉积物的对比分析，运用根际微生物作用理论，研究了大型植物对潮滩沉积物磷分布及迁移转化的影响。

The effect of Scirpus mariqueter on phosphorous distribution in intertidal sediments was examined by measuring the phosphorous concentration in near-root, mean-root and far-root sediments at different depths in three cores, with application of the theory of rhizospherical microbe.

以海三棱藨草为例，运用实验模拟的方法，通过根际、近根和远根沉积物的对比分析，运用根际微生物作用理论，研究了大型植物对潮滩沉积物磷分布及迁移转化的影响。

It is described that a series research of heavy phosphorous diffusion gettering, aluminum and combination of aluminum and phosphorous gettering (evaporation of aluminum on the front and back of the wafers) are applied to crystalline silicon.

同时，采用吸杂后的多晶硅片制备1×1cm~2的太阳电池，与未吸杂的多晶硅太阳电池相比，研究多晶硅电池的电学特性变化。

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。