温度

The effects of dehydration temperature, ratio of dehydration, catalyst dosage, polymerization and depolymerization temperature on the yield of D, L-lactide were studied.

考察了制备过程中脱水温度、脱水率、催化剂量、聚合温度和解聚温度对丙交酯产率的影响。

The variational current of dew point was high at noon.

水稻群体中露点温度的脉动远大于温度和相对湿度，总的趋势是中午露点温度较高。

New contributions of this work are as follows:(1). Preparation of Spherical MgCl_2-Supported Late-Transition Metal Catalysts for Ethylene PolymerizationFacile and effective immobilization of late-transition metal catalysts. 2,3-bis-(2,6-diisopropylphenyl) butane diimine nickel dibromide (1) and 2,6-bis-[1-(2,4,6-trimethylphenylimino)ethyl]pyridine iron dichloride (2), for ethylene polymerization has been achieved, using spherical MgCl_2 supports obtained by thermal dealcoholization of MgCl_2·2.56C_2H_5OH, and the effects of dealcoholization temperature on supported late-transition metal catalysts and the properties of resultant polymers were studied, the results indicated that:1.Supports with appropriate mechanical strength, high surface area and high porosity could be prepared by thermal dealcoholization of spherical MgCl_2·2.56C_2H_5OH supports; 2.BET, XRD, IR, SEM, GPC and DSC analyses indicate that the activities of the supported late-transition metal catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature.

本工作的新贡献如下：(1)、球形氯化镁负载后过渡金属催化荆催化乙烯聚合本文将配合物2，3-双(2，6-二异丙基苯亚胺)丁烷二溴化镍(1)和配合物2，6-二[1-(2，4，6-三甲基苯亚胺)乙基]吡啶二氯化铁(2)分别直接负载于经不同热脱醇温度处理的球形氯化镁载体上，研究了氯化镁载体的脱醇温度对负载化后过渡金属催化剂及其聚合物的影响，研究表明：1、通过对球形MgCl_2·2.56C_2H_5OH载体进行热脱醇处理，可以获得合适机械强度、较高比表面积和较高孔隙度的球形氯化镁载体；2、BET，XRD，IR，SEM，GPC和DSC研究表明，脱醇温度极大地影响负载后过渡金属催化剂的活性和聚合物的性能。

New contributions of this work are as follows:(1). Preparation of Spherical MgCl_2-Supported Late-Transition Metal Catalysts for Ethylene Polymerization Facile and effective immobilization of late-transition metal catalysts. 2,3-bis-(2,6-diisopropylphenyl) butane diimine nickel dibromide (1) and 2,6-bis-[1-(2,4,6-trimethylphenylimino)ethyl]pyridine iron dichloride (2), for ethylene polymerization has been achieved, using spherical MgCl_2 supports obtained by thermal dealcoholization of MgCl_2·2.56C_2H_5OH, and the effects of dealcoholization temperature on supported late-transition metal catalysts and the properties of resultant polymers were studied, the results indicated that: 1.Supports with appropriate mechanical strength, high surface area and high porosity could be prepared by thermal dealcoholization of spherical MgCl_2·2.56C_2H_5OH supports; 2.BET, XRD, IR, SEM, GPC and DSC analyses indicate that the activities of the supported late-transition metal catalysts and the properties of resultant polymers are strongly dependent on the dealcoholization temperature.

本工作的新贡献如下：(1)、球形氯化镁负载后过渡金属催化荆催化乙烯聚合本文将配合物2，3-双(2，6-二异丙基苯亚胺)丁烷二溴化镍(1)和配合物2，6-二[1-(2，4，6-三甲基苯亚胺)乙基]吡啶二氯化铁(2)分别直接负载于经不同热脱醇温度处理的球形氯化镁载体上，研究了氯化镁载体的脱醇温度对负载化后过渡金属催化剂及其聚合物的影响，研究表明： 1、通过对球形MgCl_2·2.56C_2H_5OH载体进行热脱醇处理，可以获得合适机械强度、较高比表面积和较高孔隙度的球形氯化镁载体； 2、BET，XRD，IR，SEM，GPC和DSC研究表明，脱醇温度极大地影响负载后过渡金属催化剂的活性和聚合物的性能。

Based on theσs1/8 -T curve and X-ray diffraction analysis, the changes in volume fraction,saturation magnetization and Curie temperature of α-Fe phase and residual amorphous phase with annealing temperatures as well as the correlation between them were determined.

研究了Fe(72.7)Cu1Nb2V(1.8)Si(13.5)B9非晶合金在不同温度（763—883K）退火1h后的热磁曲线借助于碰分析的方法，由σs1/B－T曲线并通过X射线衍射分析确定了合金中α－Fe相和剩余非晶相的体积分数、饱和磁化强度及Curie温度随退火温度Ta的变化及其相互关系。

Using MK- 801 double board computer and digit to anolog interface circuit as hardwar, de-sign and a set of temperature autocortrol system , sassociating with DWK- 702 instrument of tempera-ture fine control, applying to production technique of T1 -superrconductors and making this automa-tize.

采用MK－801双板计算机及其数模接口电路为硬件，设计并制造一套温度自动控制系统，联合DWK－702精密温度控制装置，对T1系超导材料的烧制过程进行自动控制，使这一过程自动化、程序化、并提高了温度控制精度。

Considering that the temperature gradient through thickness is much higher than that through width and length of plate, in this model, the governing equation of heat transfer was simplified as a one dimensional differential equation, and the series function solution for temperature is established in Lagrangian coordinate setting.

在该模型中，考虑到轧件厚度方向的温度梯度远大于沿宽度和长度方向的温度梯度，因而将热传导方程简化为一维微分方程，基于拉格朗日坐标建立了温度场的级数解法。

It is shown in this research that:① The acoustic emission phenomena of rock discontinuously occur under the effect of temperature.

试验研究表明：①随着温度升高，岩石的声发射现象是间断发生的；②花岗岩存在一个开始发生热破裂的门槛值温度，其值为120 ℃左右；③试验温度范围内花岗岩热破裂的声发射现象可分为5个阶段，即岩石原生裂隙整合阶段、热破裂前声发射静默阶段、热破裂声发射阶段、大规模热破裂后声发射静默阶段、二次热破裂开始阶段。

The interference of ambient temperature and external electromagnetism with Rogowskicoil were investigated by mathematical models. The relations between relative measurementerror resulting from temperature and heat distensibility coefficient of coil's framework andwindingcoilwerecarriedout. Theinfluenceofelectromagnetisminterferenceontheaccuracyof Rogowski coil, as well as the effect of temperature on integraph, were studied.

利用建立的Rogowski线圈的数学模型对温度和外界干扰磁场的影响进行了分析，得出了温度造成的相对误差与线圈骨架和绕组线圈热膨胀系数之间的关系；从两个方向上分析了干扰磁场对线圈精度的影响；分析了温度对积分器的影响等。

We offer such professional products: salt spray test chamber, sulfur dioxide test chamber, high and low temperature test chamber, temperature shock test chamber, constant temperature and humidity test chamber, high and low temperature alternating temperature humidity test chamber, UV weather resistance test chamber, xenon lamp weather resistance test chamber, air ventilation climatic test chamber, sand and dust test chamber, box rain test chamber, pipe rain test device, drip box, ozone climatic test chamber, mould test chamber, precise drying test chamber, vacuum oven, large step-into test chamber, medicine stability test chamber and vibrating table.

我司专业生产产品有：盐雾试验箱高低温交变湿热试验箱/精密干燥箱/真空烘箱/温度冲击试验箱/药品稳定试验箱/臭氧老化试验箱/紫外耐候试验箱/氙灯耐气候试验箱/换气式老化试验箱/砂尘试验箱/箱式淋雨试验箱/摆管淋雨试验装置/滴水试验装置/二氧化硫试验箱/霉菌试验箱//盐雾试验室/大型步入式试验箱//温湿度振动试验箱/温度快速变化试验箱/单翼跌落试验机/温度老化试验室防锈油脂湿热试验箱振动试验台。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。