Morphology control of needle-like magnesium hydroxide nanoparticles;
针状纳米氢氧化镁的形貌控制
Production and application of needle-like nano-CaCO_3;
针状纳米级碳酸钙的工业生产与应用
Production of needle-like nano-CaCO_3 by non-refrigerating carbonization;
非冷冻碳化法工业化生产针状纳米碳酸钙
A new type of needle α-Fe2O3 coated titania composite particles were prepared via the colloidal method and characterized by XRD,TEM,and EDS methods respectively.
采用溶胶法制备了针状α-Fe2O3包覆二氧化钛的复合纳米颗粒,并通过透射电镜(TEM)、X射线衍射(XRD)、能谱元素分析(EDS)对产物形貌和晶相组成进行了表征,对其形成机理进行了初步分析。
Experimental results showed that: the period of reaction was greatly shorted under microwave radiaton ; beside , while the molar ratio of FeCl_3 and NaH_2PO_4 were 200 and 250 , we obtained uniform spheral and acicular nanometer particles respectively ; The diameter of particles were about 20nm .
采用微波辅助法由FeCl3溶液在晶体助长剂NaH2PO4的存在下制备出了针状和球状的α-Fe2O3纳米粒子。
Acicular barium ferrite, which was prepared by topotactic reaction between barium carbonate, aciculargoethite with the aspect ratio of 14 and the average length of 500nm and some doping ions, were characterized byXRD, TEM and TG-DTA.
采用α-FeOOH(平均长度为50nm,平均轴比为14)和BaCO_3 及添加离子经局部规整反应制备针状钡铁氧体。
The acicularγ-FeOOH crystal was prepared by the liquid phase deposition-aerial oxidation method using FeCl_2 as raw materials.
本文以FeCl_2为原料,采用液相沉积-空气氧化法中的两步法制备了针状γ-FeOOH,分别讨论了晶种制备阶段反应温度和碱比(nOH-/nFe~(2+))及晶种长大阶段反应温度和碱液滴加速率对产物的组成、形貌和晶体结构规整程度的影响,并对比研究了γ-FeOOH和α-FeOOH的热行为。
By observing microstructures , we find they may form spheroidal A,acicular A and feathery A .
组织观察发现,除形成球状A、针状A外,还形成羽毛状A。
Needlelike, as the leaves of pine;acerate.
似针的，针状的似针的，如同松树的叶子；针状的
The forms of thermistors are beads, probes, disks, and rods.
热敏电阻的形状有珠状、探针状、圆片状和柱状。
gymnosperms with simple persistent needlelike or scalelike leaves.
裸子植物带有细小坚韧针状或鳞状叶。
a siliceous sponge (with glassy spicules) of the class Hyalospongiae.
硅酸海绵（有玻璃状针状体）。
Preparation and Characterization of Needle-like TiO_2 and Bi_4Ti_3O_(12) Platelets Synthesized by Molten Salt Method;
针状TiO_2、片状Bi_4Ti_3O_（12）的熔盐法制备及表征
Research present situation on preparation and application of tetrapod-like ZnO whisker
四针状ZnO晶须制备及应用的研究现状
A small, dark, needle-shaped crystal.
针形微晶一种微小的深色的针状的晶体
related to plants or animals or crystals having aciculae or needle-like parts.
与植物、动物或晶体的有针或针状部分相关的。
NUCLEATION AND GROWTH PROCESS OF THE NEEDLE-LIKE GOETHITE CRYSTALS
针状羟基氧化铁的成核与生长过程
Nucleation and Growth of the Needle-like Goethite Crystals
针状羟基氧化铁晶体的成核与生长
He could use a small steel needle-like tool in place of a key.
他能用一个小钢针状的工具代替钥匙。
Field Emission from Tetra-Needle Like ZnO Whiskers;
四针状氧化锌晶须的场发射特性研究
bleaching range for tubular knit
筒状针织的漂白机组
Any of various other coniferous trees, such as the Norfolk Island pine.
（其它）针叶状树其它针叶状树，如尼福克岛松
common small shrubby pine of the eastern United States having straggling often twisted or branches and short needles in bunches of 2.
美国东部常见灌木状松树，两针一束短针叶。
Clinical Research about Acupuncture Treatment for AHZ Using Fine Needle and Fire Needle
火针加针刺法治疗带状疱疹的临床研究
fabric slitting device
织物剖幅装置（筒状针织物的剖幅设备）
any of numerous evergreen trees or shrubs having red cup-shaped berries and flattened needlelike leaves.
常绿灌木，红色杯状浆果，扁平针叶。