查询词典 Zn

The processes include Zinc ion influx across root plasma membrane, translocation within the root symplasm and sequestration, long distance translocation in the xylem.

这个过程包括Zn在植物体内跨根细胞膜运输、根共质体内运输及区室化、木质部长距离运输等重要环节。

The ore body occurred adjacent to the granite, thus it is inferred that mineralization stage is syngenetic or slightly later than emplacement of the granite, suggesting that mineralization of Mo, W, Pb, Zn and Ag was closely related to emplacement of the Yanshan period granites, and providing a new model for prospecting intrusive-related resource inside the volcanic rocks.

由于矿体赋存于岩体顶突部位的蚀变花岗岩中，预示成矿为花岗岩侵入的同期或稍后，即钼钨铅锌银成矿与燕山期花岗岩侵入活动密切相关，这对于火山岩内寻找与侵入岩有关的矿产提供了新的思路。

The analytical results show that the high contents of Ba,tallish of As,and the lower of Zn of dinosaur fossils f.

采用 X 射线荧光光谱分析方法，对楚雄盆地不同地区的恐龙化石和围岩的元素成分进行对比研究。

For comparative research on trace element spectral diagram of animals which are different in Taxology and productive performance,the hair and blood samples were taken from 10 milking cows and 10 bile—draining bears.

本研究采取产奶期奶牛和胆汁引流黑熊的毛发和血液样品，测定其必需微量元素Mn、Fe、Co、Cu、Zn和非必需元素Cd、Pb的含量，建立所测微量元素图谱并进行比较。

A method for direct determination of Cu, Pb, Zn, S, Mg and As in copper sulphide concentrates by Axios PW4400 wavelength dispersive X-ray fluorescence spectrometer using lithium metaborate-lithium tetraborate fusion sample preparation method has been developed.

采用偏硼酸锂和四硼酸锂混合熔剂熔融法制样，波长色散X射线荧光光谱法测定铜精矿中铜、铅、锌、硫、镁、砷，考察了熔剂、玻璃化试剂和预氧化条件对制样的影响。

The powder of zinc oxide was synthesized in hydrothermal conditions with Zn(NO_3)_2·6H_2O as zinc source,and tetrapropylammonium hydroxideand tetramethylammonium hydroxideas alkaline source.

以六水硝酸锌为锌源，氢氧化四丙基铵和氢氧化四甲铵分别为碱源，进行了氧化锌粉末的水热制备。

The main contributions of this thesis are:(1) Seven mononuclear complexes of tetradentate ligand NTB have been obtained using N〓 or SCN〓 as the additional ligand;(2) Seventeen binuclear complexes of Fe , Zn , Co , Cu have been designed and the complexes of Co , Cu exhibit antiferromagnetic properties;(3) Changing the bridged-ligand such as PO〓, CO〓, o-phth, mai, Ag (CN 〓, Au 〓, etc , fourteen tetranuclear complexes of polypridine ligand have been synthesized;(4) Two antiferromagnetic 1D chain complexes of KH〓pdc ligand have been prepared from hydrothermal reactions; in addition, one ferromagnetic 1D chain copper complex of tpdp which is bridged by oxalate has been obtained.

本论文的主要贡献为：(1)合成了配体NTB的七个新型单核配合物；(2)合成了十七个铁、锌、钴及铜系列混桥双核配合物，其中双核钴和双核铜配合物为反铁磁偶合；(3)选用多吡啶配体tpdp和TPA，改变桥联配体，合成了十个四核配合物；(4)选择配体KH〓pdc，采用水热合成方法得到了反铁磁性一维链状锰、铜配合物；以草酸根为桥联配体，合成了配体tpdp的一维链状铜配合物，该化合物为铁磁偶合，文献较少报道。

Therefore, zinc oxide and Eu~(2+)-activated strontium aluminate green phosphors were synthesized for the fluorescence conversion of near ultraviolet light-emitting diode, and their properties were examined by means of photoluminescent spectra, thermoluminescent spectrum, X-ray photoelectron spectroscopy and X-ray diffraction.

本研究针对近紫外LED荧光转换材料的要求，采用荧光光谱，热释光谱，X射线光电子能谱，X射线衍射等分析手段，重点研究ZnO绿色荧光粉和Eu~(2+)激活铝酸锶绿色长余辉荧光材料的合成，或提高发光效率和稳定性的新方法及其相关机制。并在以下几方面取得了一些进展： [1]将ZnS与一定量的卤化物MX(X=F，Cl，Br，I；M=Na，K，NH_4，Zn，ZrO)一起煅烧合成出发光性能优良的、具有六方纤维锌矿结构的ZnO绿色荧光粉。

Calcium has the effects of decreasing the concentration of soluble sugar and titratable acid and enhancing the firmness of fruits,has the effects of which was to some degree determined by the ca...

喷氨基酸钙的效果与此相似。在柠檬酸钙分别和Zn、B、IAA配合使用试验中，柠檬酸钙和IAA配合使用效果最好，使果实中钙含量提高了 10 4 89%。

Fresh Toona Sinensis was stored in 3℃,-6℃,-18℃ respectively with presence of biophyll protect agent of NaCl,CuSO4,Zn(CH3COO)2 mixed solution in the experiment.

以新采摘的香椿为材料，以食盐、锌、铜盐为护绿剂，分别选择3℃、-6℃和-18℃对其进行贮藏。

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。