查询词典 Zn

Feeding pharmacological level of Zn in the form of ZnO has been shown to decrease the incidence of non-specific post-weanling scours and improve growth performance of weanling pigs.

从ZnO中添加药理水平的Zn已表明可降低后期断奶仔猪的不明腹泻，提高断奶仔猪的生长性能。

With water culture and by using differential centrifugation technique and sequential extraction, the subcellular distribution and chemical forms of Cd and Zn in the root, stem and leaf of Sedum jinianum were studied.

运用差速离心法和化学试剂逐步提取法，分析了Cd和Zn在皖景天根、茎和叶的亚细胞分布及其化学形态。

The results indicate that the main lithology of the Yeniutan granite are granodi orite and adamellite, which are low in silicium, rich in aluminium, poor in alkali and rich in B, V, Zr, Ag, Pb, Zn, Cu, W, Be etc.

结果表明，该岩体主要岩性为花岗闪长岩和二长花岗岩，岩石组分为低硅过铝偏铝贫碱质，富含B、V、Zr、Ag、Pb、Zn、Cu、W、Be等元素。

At the heavy metal concentration of 3-4ppm, our study on adsorption capacity, adsorption selectivity of montmorillonite, illite and kaolinite to Cu〓、 Pb〓、 Zn〓、 Cd〓、 Cr〓 shows that the adsorption capacity is mainly determined by the capacity of exchangeable cations and the adsorption capacity of the three clay minerals decreases in this sequence: montmorillonite ＞＞ illite＞kaolinite. It is found that clay minerals have obvious adsorption selectivity to various heavy metals. Montmorillonite exhibits a stronger affinity to Cr〓 and Cu〓 while kaolinite and illite sorb Cr〓 and Pb〓 more effectively. At the same heavy metal concentration, adsorption amount of clay minerals to heavy metals increase with increasing pH value of the solution.

在痕量浓度下，研究了蒙脱石、伊利石、高岭石三种粘土矿物对Cu〓、Pb〓、Zn〓、Cd〓、Cr〓五种重金属离子的吸附容量、吸附选择性及其介质条件对吸附量的影响，结果表明，粘土矿物的阳离子交换容量越大，对重金属离子的吸附容量也越大，其大小顺序为蒙脱石＞＞伊利石＞高岭石；同时，不同粘土矿物对重金属离子具有明显的吸附选择性，蒙脱石对Cr〓和Cu〓有较好的选择性，伊利石和高岭石则对Cr〓和Pb〓有较好的选择性；随着吸附溶液pH值的增大，其吸附量有增加的趋势。

ED-50s of Pb for growth of root, stem and leaf callus were 80, 40 and 15 mg/L, respectively. Those of Zn, Cu and Cd were 80, 30 and 10 mg/L, 20, 8 and 4 mg/L, and 15, 8 and 6 mg/L, respectively.

Pb对根、茎、叶的半抑制质量浓度分别为80，40和15 mg/L， Zn则分别为80， 30和10 mg/L， Cu分别为20， 8和4 mg/L， Cd分别15， 8和6 mg/L。

The XRD results showed that there was not any pure nickel or nickel-oxide in the samples, and the majority of Ni atoms was incorporated at Zn substitutional sites.

运用X射线衍射分析表明样品中不存在镍及镍的氧化物，镍进入晶格中取代了部分Zn原子的位置。

The second route firstly studied the tautomerization of the key intermediate from spirostane to cholestane 3-O-substituted kryptogenin,then formed a direct access used Zn/KI/HOAc reduction,which supplied a better synthetic method of MPD and other furostanol saponins.

第二条路线则首先研究了由螺甾到胆甾结构的关键中间体3-O-substituted kryptogenin的异构化现象，建立起以Zn/KI/HOAc还原反应直接合成该中间体的过程，这提供了一个更好的合成甲基原薯蓣皂苷及其他呋甾皂苷的方法。

It must be pointed out that the silverbearing tetrahedrite and freibergite of the Caijiaying deposit have about the same iron and zinc content, but differ from the Fe_rich and Zn-poor tetrahedrite and freibergite in the Xiasai,Lamo, Mount Isa and Langdal deposits.

按国际矿物学协会新矿物及矿物命名委员会的矿物命名原则，黝铜矿族矿物所含的Fe、Zn、Hg、Cd、Mn等不可作为矿物种的命名元素。

The thermomagnetic Mn-Zn-ferrite, which has low Curie temperature was prepared.

制备了低居里温度的磁热Mn Zn铁氧体，对样品进行了磁滞回线和磁热效应的试验及测定，结果表明，试样在交变磁场下，具有明显的磁热效应。

The synthesis and structure properties of Fe-Mg-HTlc and Mg-Zn-Al-Fe-HTlc, the electrochemical properties of Fe-Mg-HTlc and the thixotropy of HTlc/clay suspensions and the application of HTlc were studied in this paper.

本论文系统研究了Fe-Mg—HTlc及Mg-Zn-Al-Fe-HTlc的制备与表征、Fe-Mg-HTlc的电性质、HTlc／粘土悬浮体的触变性及类水滑石化合物在油田开发领域的应用。

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。