金属元素

The objective of the research was to determine the contents of essential metal elements of human in Potentilla anserina L. and provide references for developing health products and drinks of P. anserina.

目的］为了测定蕨麻中人体必需金属元素的含量，从而为开发蕨麻保健品与饮料提供参考。

Determination on Contents of Essential Metal Elements of Human in Potentilla anserine L. by Inductively Coupled Plasma-Atomic Emission Spectrum

等离子体发射光谱法测定蕨麻中人体必需金属元素含量的研究，刘晓颖；丁毅；谢继锋；沈宇-66文免费论文库，大学生论文库

TOF-SIMS images show bacteriogenic pyrites are relatively rich in Cu, Zn, and Ni, suggesting that bacteria probably play an important role in the enrichment of Cu, Zn, and Ni during their formation.

TOF-SIMS 的离子像亦表明菌落成因的黄铁矿富集 Cu 、 Zn 和 Ni ，表明菌落在生物成因黄铁矿的形成过程中，在改变介质条件、在迁移、活化和富集 Cu 、 Zn 等金属元素方面做出了贡献。

Rare Earth is not the ordinary "soil", but the 17 kinds of metal elements collectively.

稀土并不是普通的"土"，而是17种金属元素的统称。

A heavy gray-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite.

一种重的灰白色金属元素，纯净状态下主要用于电器，见于许多矿石中，包括钨锰铁矿和白钨矿。

The implications and the results of the transition metal isotopes in the study of seafloor hydrothermal activity have been introduced.

主要介绍了过渡族金属元素同位素在现代海底热液活动研究中的应用以及取得的重要成果。

The contents of metal elements in silk gland and silk fiber of B . mori silkworm have been detailedly analyzed by proton induced X-ray emission, inductively coupled plasma mass spectroscopy and atomic adsorption spectroscopy.

用不同的测试方法，即质子诱导X射线发射、电感耦合等离子体质谱和原子吸收光谱对桑蚕丝腺体和丝纤维中金属元素的含量进行了详细的表征。

The results showed that Na, Mg, K, Ca, Cu, Zn, Fe and Mn were found in both silk gland and silk fiber, while Rb and Sr were also possibly contained.

结果表明，在桑蚕丝腺体和丝纤维中含有钠、镁、钾、钙、铜、锌、铁、锰八种金属元素，同时还可能含有微量的铷和锶。

The contents of metal elements in silk gland and silk fiber of B. mori silkworm have been detailedly analyzed by proton induced X-ray emission, inductively coupled plasma mass spectroscopy and atomic adsorption spectroscopy.

摘要用不同的测试方法，即质子诱导X射线发射、电感耦合等离子体质谱和原子吸收光谱对桑蚕丝腺体和丝纤维中金属元素的含量进行了详细的表征。

The contents of these elements varied from silk gland to different kinds of silk fibers ( i.e. cocoon silk, forced-drawn silk and degummed silk), and the changes of element content might correspond to the effect of these metal elements on the spinning process (conformation transition of silk fibroin) of B . mori silkworm.

这些金属元素在丝腺体和各种丝纤维(蚕茧丝、强拉丝和脱胶丝)中的含量都有所变化，而这些变化可能与之在成丝过程中所起的作用有关。

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。