查询词典 phosphorus

The concentrations of nitrogen and phosphorus are menstruated and analyzed in the rainfall runoff of the area.

通过对以上内容的研究，以期为淮河流域淮南中段的水环境综合整治提供科学依据。

In fact, some of organicphosphorus was easy to be mineralized and plays an important role to the supply of phosphorus.

事实上，土壤中某些有机磷是易矿化的，对土壤磷素供应起着重要的作用。

The A2N process was set up in two-sludge system, in which nitrifies were separated from denitrifying phosphorus removal bacteria in a nitrification biofilm reactor, whereas DPB sludge was recalculated between an anaerobic reactor and an anoxic reactor.

A2N系统的DPB污泥絮体凝聚较好且颗粒较大，污泥的SVI通常处于52－92mL/g之间。

PH, dissolved oxygen and chemical indexes for instance total nitrogens, total phosphorus, chemistry oxygen depletion; appraised phytoplankton species complexity; numerated phytoplankton cell density; analyzed various kinds of biological diversities.

主要测定了水温、透明度、pH、溶解氧等物理指标；总氮、总磷、化学耗氧量等化学指标；同时对浮游植物的种类组成、细胞密度和生物多样性指标进行了鉴定、记数和分析。

Phosphorus is an essential element of life, which participates in almost all the life process directly or indirectly.

磷是生命的中心元素，所有的生命活动过程都直接或间接有磷的参与。

Traditional method is the fundamental method of V - P - O catalyst preparation; Aerosol Precessing is a method of fast catalyst preparation; Flame Deposition Technique is one of method of preparing nanostructured Vanadium phosphorus Oxide.

但不同的制备方法对催化剂晶粒大小、晶型、比表面和耐磨程度影响较大。在v—P～O催化剂的研制过程中，人们对V—P—O催化剂的不同制备方法也进行了研究，以期合成反应性能更好的催化剂。

A successional Artemisia ordosica and A. frigid community, located on the eastern edge of the Tengri Desert in Alashan Left Banner, Inner Mongolia, was selected as an object for study. Densities of the plants and total nitrogen and available phosphorus in 0~20 cm soil layer were measured of the 400 quadrates (4m×4m) in the sampling plot (80m×80 m) for analysis of relationship between N/P ratio in the soil and plant density thereupon and between the two in spatial heterogeneity.

选择腾格里沙漠东缘内蒙古阿拉善左旗境内的油蒿＋冷蒿群落为研究对象，在80m×80m样地400个4m×4m样方中，调查了油蒿和冷蒿的密度，测定了0~20cm土层中的全氮和有效磷，分析了土壤氮／磷比与植物密度之间及其空间异质性之间的关系。

When sufficient nitrogen and phosphorus were resupplied to N\| and P\|starvation cultures of S.

两组藻液Fv/Fm比值保持相对稳定，短时间内未见明显降低。

The hard material of the tooth is composed of calcium, phosphorus, and other mineral salts.

牙齿的坚硬材质是由钙，磷和其他天然盐组成的。

TWINSPAN analysis shoed that 25 sampling plots could he classified into three groups. Group 1 contained 6 sites, Group 2 contained 18 sites, and Group 3 contained 1 site, which represented three babitats with different contents of soil organic matter, total nitrogen and total phosphorus.

TWINSPAN分析表明，该区25个样地分为3个主要类型组，组1包括6个样地，组2包括18个样地，组3包括1个样地，分别代表不同土壤有机质、全氮、全磷含量的3种生境。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。