真空

Compared with the control, the vacuum package or adding deoxidant package with materials of low venting quality can constrain the accelerating speed of PV and AV, and delay rancidity.

采用低透气性的包装材料进行真空包装或添加脱氧剂包装，可明显抑制过氧化值和酸价的增加速度，延缓酸败。

PbF2:β undoped and doped with gadolinium and europium in the 0.1～0.2wt% range were grown not in vacuum by the stockbarger process of used with deoxidant.

用脱氧剂非真空环境下、Stockbarger方法生长未掺和掺钆和铕的、浓度范围在0.1～0.2wt％的PbF2：β晶体。

Using them in the vacuum or deoxidization.

建议在真空、还原氛围中使用。

Four kinds of methods of deoxygenation , such as by introduced in accordance with he routine mam-tance of water healers, prpe networks and radiators.

分析了热水供暖系统中氧腐蚀机理及危害，针对热水锅炉、管网及散热器的日常养护，提供了热力除氧、化学除氧、真空除氧和解吸除氧4种除氧方法。

The deoxygenation method which is often used in China at the present,both physical method(heating power deoxygenation ,analysis deoxygenation ,vacuum deoxygenation )and chemical deoxygenation (hurling Na-2SO-3 method directly,Fe filings method,hydrazine method) have a certain problem when is used in middle or small boiler supply water.

国内目前常用的锅炉除氧方法，无论是物理法(热力除氧、解析除氧、真空除氧)还是化学除氧(亚硫酸钠直接加入法、铁屑法、联氨法)，应用于中小型锅炉补给水的除氧都存在一定问题。

Possibility of reducing dephosphorization of the steel with rare earth has been analyzed theoretically.

从理论上分析了稀土对钢液还原脱磷的可能性，并在5kg真空感应电炉内用La-Ce-Pr-Nd混合稀土金属对1Cr18Ni9Ti不锈钢进行了还原脱磷试验。

Adopting vacuum and air power theory and the equipment, attraction, relaxation and suppressing can be progressed on facial and neck skin, muscle and lymph to make vibration massage formation process, and the vibration energy can go through derma directly to the subcutaneous fat.

利用真空负压和空气动力原理，通过护理器对面部和颈部皮肤、肌肉和淋巴进行吸引、放松和打压形成震动按摩过程，震动能量通过真皮直达皮下脂肪。

When using a vacuum desiccator, turning on a desiccator's air escape valve directly before shutting

使用真空干燥器时，未关闭真空泵就直接开干燥器的放气阀，结果使泵内的机油

The dry speed of the freeze-vacuum-sublimation desiccator , which first made by the task group in China and later improved by the author, is up to the world′s advanced standard.

冷冻真空升华干燥仪是我国最早研制成功的一台备样仪器，经作者改进后，使仪器各项指标达到了国际先进水平，个别已超过了国际上同类仪器所报导的指标。

In the School, there is a high-level experiment research center furnished with the atomic absorption spectrophotometer , comprehensive thermal analyzer, in-situ high temperature and high resolution SEM, in-situ high temperature XRD, RAMAN, ICP, FTIR, AFM, CHN, laser particle analyzer, GPC, dynamic mechanical analyzer, laser flash thermal conductivity determinator , high temperature graphite furnace , PECVD, magnetron sputtering furnace, etc.

学院建设具有高水平的实验研究中心，拥有ICP、DSC、高温原位HRSEM、、高温原位XRD、RAMAN、激光粒度仪、GPC、CHN、DMA、孔径与比表面测定仪、激光闪光导热率测定仪、高温石墨炉、真空热压炉、PECVD、磁控溅射仪等仪器设备。

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