查询词典 vacuum sweeper

We used different methods to calculate luminosity in order to assure its reliability. Structure function method is adopted to derive the radiatively corrected cross section whose accuracy is up to 1%. The corrections from vacuum polarization and effect of energy spread are also studied. The final analytical approximation formulaes of the observed cross sections are worked out. Different fitting methods are carried out to fit the resonances according to different requests.

模拟的分布图的仔细对比，并兼顾实验的要求，得到每种事例对应的选择条件，特别是在处理积分亮度时，更是采用了不同的方法，以保证亮度计算的可靠性；采用结构函数的方法推导出截面的辐射修正公式，精确度达到了1％的水平，研究了真空极化给拟合公式带来的修正，并考虑了束流能散的影响，计算出最终的观测截面的解析近似式；对于三个共振态的拟合，针对不同的要求，采用了不同的拟合方法；同时在M.C。

The combustion reactivities of three types of delayed cokes, vacuum residues and their mixture were investigated by TG and DTG.

利用热重技术对三种延迟石油焦、三种减压渣油及其混合物的燃烧反应特性进行了考察。

Sacral tumor ; Soft tissue defect ; Vacuum seal ing drainage ; Gluteus maximus myocutaneous flap ; Repair

骶骨肿瘤；软组织缺损；负压封闭吸引；臀大肌皮瓣；修复

The structure and feature of WZDQ30C vacuum furnace for pressed gas quenching was introduced in this paper.

简要介绍了WZDQ30C型真空加压气淬炉的结构及其特点，总结了在调试过程中的一些体会，对典型软磁材料进行了真空热处理并测定了热处理后的磁性能。

The advantages of vacuum freeze-drying technology on foods were introduced in this paper.

介绍了食品真空冷冻干燥技术的优点，综述了国内外食品真空冷冻干燥技术的应用状况，对食品真空冷冻干燥技术的发展前景进行了预测。

Researches on the function of vacuum freeze-drying equipment have already caused the extensive interest and value.

目前对冻干设备性能的研究已引起广泛的兴趣和重视。

To reduce the water content of soybean phosphatidylcholine product, the vacuum freeze-drying of soybean phosphatidylcholine was conducted.

以降低大豆卵磷脂产品的含水量为目标，对大豆卵磷脂进行了真空冷冻干燥的实验研究。

The important application field of vacuum freeze-drying is the storage of isolated biological tissue.

离体生物组织的冻干贮藏是真空冷冻干燥技术应用的重要领域，对其低温低压传热传质的理论研究已成为前沿的热门课题。

Vacuum freeze-drying experiments and methods on keeping active cornea of animal and human being were researched.

通过对动物和人类眼角膜进行冻干保存实验，对冻干保存方法进行了系统的研究。

The results coincide the low-lying level splittings obtained with the Lehmann-Symanzik-Zimmermannmethod in field theory in which the tunneling at n-th excited states is viewedas transition of n bosons induced by vacuum instanton.

用场论中的Lehmann-Symanzik-Zimmermann方法计算了低激发态的能级分裂，其中第n个激发态的隧穿看作是由真空瞬子诱导的n个玻色子的跃迁。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。