查询词典 differential analyzer

The result indicated that, DTA and DSC apparatus constants of CDR-1 dynamic differential thermal analyzer increase along with temperature increment, but influence of temperature on DTA apparatus constant is more remarkable.

采用6种标准物质测定CDR-1型差动热分析仪的差热分析法和差示扫描量热法仪器常数，结果表明：CDR-1型差动热分析仪的差热分析法和差示扫描量热法仪器常数均随温度的升高而增大，而差热分析法仪器常数受温度的影响更为显著。

The effects of the dosages of initiators, emulsifier, organicsilicon and 2-Hyciroxypropyl acrylate on conversion and graft efficiency were studied. Moreover, the particle morphology, particle size distribution and glass transition temperature of latex were characterized by Transmission Electron Microscopy, size distribution analyzer and Differential Scanning Calorimetry.

考察了引发剂用量、乳化剂用量、有机硅用量、丙烯酸羟丙酯用量对硅－丙核／壳乳液转化率、接枝率的影响，并借助透射电镜、粒度分布仪和差示扫描量热仪分别对乳胶粒形貌、粒径分布及其玻璃化转变温度进行了表征。

Morphology of Sn-0.7Cu and Sn-3.5Agpowders, the course of mechanical alloying and the effect of ball milling conditionson the formation of mechanical alloy were analyzed using a scanning electronmicroscope, a differential thermal analyzer and an X-raydiffractometer.

利用扫描电镜、差热分析仪、X 射线衍射仪对 Sn-0.7Cu、Sn-3.5Ag 合金粉末的形貌、机械合金化进程、球磨条件对机械合金化合金相的影响、机械合金化 Sn-0.7Cu、Sn-3.5Ag 的反应机制进行了研究。

The changes in phase structure and Curie temperature of the Sm2Fe17 compound after nitrogen absorption were studied by using X-ray diffraction, differential thermal/thermo-gravimetric analyzer and magnetic measurement. The results of X-ray diffraction showed that the diffraction peaks of the Sm2Fe17 compound shifted toward lower angle after nitrogen absorption, and the characteristic peaks of α-Fe were observed. This showed that the unit cell of Sm2Fe17 expanded, the compound was decomposed to a certain extent and the characteristic peaks of α-Fe appeared.

通过X-射线衍射、差热－热重联用仪以及磁测量等手段，研究了Sm2Fe17化合物吸氮后的相结构及居里温度的变化行为。X-射线衍射表明，吸氮后Sm2Fe17化合物的衍射峰向小角度方向偏移，并且出现了α-Fe的衍射峰，这说明吸氮后化合物的晶胞有所膨胀，并且化合物有一定的分解，产生了α-Fe。

To test the respirators fitness, we used quantitative fit test system to measure the fitness of the three models of new respirators worn by real person. The testing method is to use a differential mobility analyzer to select the particles of 40nm in diameter. N95 respirators are capable of filtering out almost all 40nm particles, therefore, the 40 nm particles measured within the respirator would be considered due to the leakage caused by poor fitness.

口罩密合度是使用定量密合度测试组合系统以真人分别配戴三款五年口罩A、B与C和同样型号新口罩来测试其密合度，测试方法主要是利用差异电移动度分析仪筛选粒径为40nm的微粒，而N95口罩的特性几乎可以完全过滤40 nm的微粒，所以口罩内量测到40nm粒径的微粒可被认定是泄漏造成。

Microstrucfure of the powder samples achieved such as crystallographic structure, grain size, particle morphology, element analysis and thermal decomposition were characterized by means of X-ray diffraction, transmission electron microscopy, electron diffraction, energy dispersion X-ray spectroscopy and differential thermal analyzer etc.

结果表明，所制备的钠米镍粉、镍铜及镍铜硼复合粉呈颗粒均匀的球形或类球形，粒径在40nm～60nm之间。采用DTA方法对添加了纳米粉的高氯酸铵、AP／HTPB推进剂热分解情况进行表征。

The fabrication of fibers was attempted. The copolymers, the copolymers containing MOCT and the copolymer films containing MOCT were characterized by using Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, Differential Scanning Calorimetry, Thermogravimetric Analyzer and X-ray Diffraction etc. The conclusions were summarized as following,1. The AN/MMA copolymers were testified that copolymerization of most AN and MMA occurred and the ratio of AN and MMA in copolymer was less than the ratio of monomers. With the increase of the contents of MMA, the viscosity of copolymer solution, molecular weight and decomposition temperature of copolymers increase.

通过傅立叶变换红外光谱、扫描电子显微镜、差示扫描量热分析、热重分析、X-射线衍射分析等测试方法对得到的AN／MMA共聚物、含有正十八烷微胶囊的共聚物以及共聚物膜等进行了测试和分析，得到如下的研究结论： 1、丙烯腈—甲基丙烯酸甲酯之间发生了聚合反应，共聚物的组成比略小于投料比；共聚物的粘度和分子量随着第二单体MMA加入量的增加有增大的趋势；第二单体加入量的增大使得共聚物的分解温度升高，通过热重分析证实当AN／MMA摩尔比为85／15时，共聚物的耐热稳定性较高。

The interactions for 3, 3-bisoxetane/tetrahydrofuran copolymer with hexanitrohexaazaisowurtzitane (CL-20), 3, 4-dinitrofurazanfuroxan, 1, 3, 3-trinitroazetidine and ammonium nitrate were studied by using pressure differential thermal analyzer and thermogravimetry-derivative thermogravimetry.

用高压差示扫描量热法和热重－微商热重法，研究了PBT与CL-20、DNTF、TNAZ、ADN之间的相互作用。

The chemical composition, morphology, crystal microstructure, particle size, infrared spectra properties and oxidization resistance of the product were analyzed using the high-resolution transmission electron microscopy, X-ray diffractometry, transmission electron microscopy, corresponding selected-area electron diffractometry, thermogravimetric analyzer differential scanning calorimeter and Fourier transform infrared spectrum.

采用高分辨透射电子显微镜、X射线衍射、透射电子显微镜、选区电子衍射、热重和差示扫描量热分析仪以及傅里叶变换红外光谱等手段对试样的成分、表面组成、形貌、晶体结构、粒度、红外吸收性能和氧化特性进行了分析。

The matrix composites for diamond tools were tested with such modern testing instruments and equipments as DTA-7 differential thermal analyzer, JCXA-733 electronic probe and scanning electron microscope, JEM 2000 FX Ⅱ transmission electron microscope, eXL energy spectrometer, and humidity test instrument. The analysis, comparison, and induction of the testing results prove the enhancing effects of the rare earth on the matrix composites: degeneration, micro-alloying, purification, and catalytic activation. The comprehensive function of these effects leads to the decrease in the porosity of the matrix composites and to the increase in such actual indexes as the flexural strength, hardness, and impact ductility of the whole rare earth Fe-based diamond tool materials.

由DTA-7型差热分析仪、JCXA-733型电子探针及扫描电镜、JEM2000FXⅡ型透射电镜、eXL能谱仪以及莱茨2AP高温显微镜材料润湿性测试仪等现代测试仪器设备对金刚石工具材料进行了测试实验，对测试实验的结果进行了分析、比较和归纳，证实了稀土对胎体材料具有变性、微合金化、纯化和催化活化等四大强化作用机理，这些机理的综合作用导致了胎体材料孔隙率的降低和整个稀土Fe基金刚石工具材料抗弯强度、硬度及冲击韧性等实际使用性能的上升。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐