钼的

Bismuth phosphomolybdate is a catalyst in the production of acrylonitrile, an important raw material for fibres and plastics.

磷钼酸铋是一种催化剂，用于丙烯的生产过程，丙烯是生产纤维和塑料的重要原料。

The highest ee value of 71% was achieved by using chiral molybdenum 2'-pyridingyl alcoholate complex at 0 ℃. After addition of phase transfer catalyst Bu4NBr, the yield and ee value were remarkably increased.

其中手性吡啶醇二氧合钼在0℃下的对映选择性ee值达到71%；加入相转移催化剂四正丁基溴化铵，催化剂的活性和对映选择性有显著提高，其中手性吡啶醇二氧合钨在50℃下ee值由54％提高到78%。

ABSTRACT In the present paper experimental studies on thermodynamic behaviour of titanium and silicon oxides in a number of quaternary and pentanary molten slags have been made by means of H〓O/H〓 chemical equilibrium between copper melts and molten slags in alundum crucibles with the molybdenum plate as the liners.

本文采用H〓O/H〓定组成混合气体与钼衬坩埚中熔渣之间的化学平衡方法，实验研究了多个四元和五元熔渣中钛和硅氧化物的热力学行为。

Objective To study the value of CT and mammography for diagnosing breast cancer.

目的 探讨CT和钼靶摄影在诊断乳腺癌中的价值方法收集23例乳腺癌，均术后病理证实。

Objective:To evaluate the value of 99mTc-MIBI imaging and mammography in the diagnosis of breast tumor.

目的：分析比较99mTc-MIBI乳腺显像与钼靶X线摄影法对乳腺肿块的临床诊断价值。

Objective: To access the utility of ultrasonography combining with mammography in diagnosis of early breast cancer.

目的：探讨彩色多普勒超声及X线钼靶检查联合应用在早期乳腺癌诊断中的实用价值。

The compatibilities of molybdenum dialkyldithiocarbamateand Cacompounds in greases were studied.

研究了氨基甲酸钼和钙化合物在润滑脂中的配伍性。

Compound 12 exhibits a three-dimensional gridded network constructed by one-dimensional molybdete-vanadate strip.

化合物12是由一维钼钒簇带构筑的三维格子状网络。

The conversion and selectivity of oxidation of 2-octano l to hexanoic acid by nitric acid using the mixed-addenda heteropolyacid H15- xPMoxV12-xO40·nH2O(n=20-40)as the catalys t were studied.

采用磷、钼、钒系列多元杂多酸作为硝酸氧化仲辛醇制己酸的催化剂，对其催化性能和选择性进行了实验研究。

To explore the relationship between mammographic signs and expression of VEGF and MVD in breast cancer.

探讨乳腺癌钼靶X线征象与肿瘤血管内皮生长因子和微血管密度表达的关系。

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。