含磷的

Three chiral phosphorus ligands were prepared using anisole as the startingat material.Their applications in the asymmetric hydroformylation and asymmetric conjug ed addition of diethylzinc to enones were investigated.

以苯甲醚为原料，合成了三种新的手性含磷配体，考察了三种配体在不对称氢甲酰化反应和ZnEt2对环己烯酮的不对称共轭加成反应中的应用。

A high efficiency decalcification agent without phosphorus matter or metal content has been developed for Liaohe crude with high calcium content,and calcium in the crude before and after decalcification are analyzed by atomic absorption spectrometry.

针对辽河高钙原油研制开发了无磷不含金属的高效脱钙剂，利用原子吸收光谱对原油中的钙含量进行分析，考察了剂钙摩尔比、注水率、反应温度、沉降时间和搅拌时间对脱钙效果的影响。

Phosphorus compounds result from degradation of compounds such as nucleic acids and phospholipids and occur as inorganic phosphates,that is ,orthophosphate or polyphosphate,or organic phosphorus.

"含磷化合物是由象核酸及磷脂这样的化合物的降解而产生的，并以无机磷酸盐，也就是正磷酸盐或多磷酸盐的形式存在，或以有机磷的形式而存在"

Zhoukou City, Henan Province, Yu Xin, a company specializing in the production of color paper soap flakes cartons loaded, aromatic bath tablets, soap, flowers, petal soap, soap, fine paper, gift roses, BB pre-owned private enterprises, the company's products Use of natural plant spices, skin care raw materials, the High import fungicides, surfactant, phosphorus, sulfur / F /, neutral formula, no fiber, water completely dissolved, the United States and Seoul paper soap is the next generation of green Environmentally friendly products.

河南省周口市裕鑫日化公司是专业生产彩色纸香皂、薄片纸盒装，芳香沐浴片、花朵香皂、花瓣香皂，精品纸香皂，礼品玫瑰花，BB花的独资民营企业，公司的产品采用纯天然植物香料、护肤原料、高级进口杀菌剂、表面活性剂、不含磷、硫/氟/、中性配方，无任何纤维，遇水完全溶解，美尔纸香皂是新一代的绿色环保产品。

The contents of nitrogen, phosphorus and potassium of treatments added pig wastewater were higher than those of treatments added anaerobically digested effluent.

含稻草的堆肥处理，钾的含量明显高于其它处理；添加猪粪水的处理，其氮、磷、钾含量高于添加猪粪水厌氧消化液的处理。

After six procedures for the synthesis of deoxybenzoins reported recently were studied carefully, we finally invented a new method to prepare polyhydric deoxybenzoins.

二、详细探索了多种去氧安息香合成方法，对于近期文献报道的6种制备工艺进行了跟踪研究，首次在Hoesch反应中引入了含磷或硫的催化剂，进而发明了一种制备多羟基去氧安息香的合成新工艺。

Cycle are divided into for the phosphoric rock series of the Yangshui Formation at this zone, in association with sequence interface and its relative characterization, the types of the sequences are determined and the Yangshui Formation is considered a high-ranking I-level sequence that is constituted by a series of low-grade retrograding type of de.

应用层序地层学的概念和方法，从沉积特征研究入手，对该区的含磷岩系———洋水组划分出5个沉积层序，结合层序界面及层序的归纳描述，确定了层序类型，并认为洋水组是一套海进体系域中由一系列低级别退积型沉积层序组成的高级层序。

A four ball tester was used to evaluate the antiwear and extreme pressure properties of antimony dialkyldithiophosphate with friction reducer containing phosphorus, chlorinated paraffin(T301) and sulfurized isobutylene (T321), and their synergistic effects.

利用四球试验机评价了二烷基二硫代磷酸锑与含磷摩擦改进剂、氯化石蜡(T301)、硫化异丁烯(T321)3种添加剂的极压和抗磨性能，以及它们之间的极压和抗磨协同作用；利用市售演示仪评价了SbD-DP、T301和T321之间的协同抗擦伤能力。

The high abundance of the embryo fossils in the Weng'an biot a provides evidence for the rapid radiation of cryptic metazoans before Cambrian.

这一结果客观地反映了瓮安生物群的化石丰度，证实了保存在瓮安陡山沱组上磷矿段灰色富氧含磷埋藏相中的瓮安生物群主要自动物胚胎化石组成的特征。

Moreover, their applications in the electronic industrials and the tendency of the research in the field are discussed.

对含磷环氧树脂在电气电子领域的应用作了探讨，并对其在今后的研究作了展望。

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。