查询词典 phosphorous

Fluoro phosphorous imine were synthesized from fluorinated alkyl azides, and its Wittig reaction was studied.

以氟烷基叠氮化合物为原料，合成了含氟磷亚胺化合物，并对其氮杂-Wittig反应进行初步研究，通过1HNMR，19FNMR，IR，MS及元素分析对化合物的结构进行了表征。

The present study was conducted to investigate the effects of excessive VA on calcium and phosphorous metabolism in broilers and underlying mechanisms.

本文共分5个试验研究了日粮VA过量对肉仔鸡钙磷代谢的影响及机制。

Roots grew preferentially, R/S ratio and phosphorous utilized efficiency are high; As the treated time prolongs, rubber mini-seedling buddings under the treatment of phosphorus deficiency is seriously restrained.

抽生期、古铜期和成熟期根系可溶性糖大量合成蛋白质，IAA含量高、iPA含量低，根系活力强，说明根系生长快、代谢旺盛、吸收能力强；淡绿期、稳定期则相反。

The mineral composition of interstitial phase and chemical composition of ferrite phase in the clinkers which were manufactured by Kunming Cement Plant utilizing phosphorous slag, copper slag and pulverized fly ash simultaneously were studied by means of extraction with salicylic acid methanol and acetic acid aqueous solution and XRD.

采用水杨酸甲醇溶液和醋酸水溶液选择萃取及XRD方法，对昆明水泥厂以磷渣、铜渣和粉煤灰配料生产的硅酸盐水泥熟料进行了矿物组成和铁相化学组成的研究。

For our projects we require DEOXIDISED HIGH PHOSPHOROUS COPPER DHPC

我们计划咨询除氧高磷铜。

Through heating zirconium hydride, high purityC02 and red phosphorous, the gas adsorbs, desorbs, scatters and finally forms the compact film on the surface of zirconium hydride.

研究了通过加热氢化锆、高纯二氧化碳和磷，在设定的工艺参数下，通过反应气体在氢化锆表面吸附、离解，然后通过元素扩散和反应生成致密的膜层。

As one of the key processes, phosphorous gettering treatment has been widely applied to improve the electrical properties of crystalline silicon which is the main photovoltaic material.

晶体硅材料是太阳电池的主要材料，其性能的好坏直接影响着电池最终的转换效率。

As one of the key processes, phosphorous gettering treatment has been widely applied to improve the electrical properties of crystalline silicon which is the main photovoltaic material.

磷吸杂作为提升晶体硅材料性能的主要手段被广泛应用在太阳电池的生产工艺中。

It is well known that the gettering dwell time of rapid thermal phosphorous gettering is too shorter to dissolved impurities and precipitate of transitional metals in the silicon matrix and diffused to the gettering sites.

恒温磷扩散对于在中、低温(低于900℃以下)时铁的沾污有明显的吸杂作用，可以很好的恢复和提高材料的电学性能，特别在磷扩散吸杂后再结合进行氢钝化处理可大大的改善材料性能。

It does not contain elemental phosphorous, halogens or heavy metals.

它不包含元素磷，卤素或重金属，阻燃，热稳定。

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。