查询词典 vacuum-packed

Group of Seven holding company subsidiary, is the design, development, manufacturing, sales, service integrates a variety of double-screw pump, the three screw pumps, high pressure hydraulic gear pumps, low pressure and vacuum pump gear-driven products Specialization large manufacturers.

集团下属七大控股公司，是集设计、开发、制造、销售、服务为一体，以各种双螺杆泵、三螺杆泵、高压液压齿轮油泵、低压齿轮输油泵及真空泵为主导产品的专业化大型生产厂家。

The gear pump is the volume pump's one kind, by two gears, the pump body and the first top plate is composed two seal spaces, when gear-driven, the gear withdraws the side the space volume to increase since childhood, the vacuum production, inhales the liquid, the gear meshing side's space's volume is small from the big change, but pushes in the liquid in the pipeline.

齿轮泵是容积泵的一种，由两个齿轮、泵体与前后盖组成两个封闭空间，当齿轮转动时，齿轮脱开侧的空间的体积从小变大，形成真空，将液体吸入，齿轮啮合侧的空间的体积从大变小，而将液体挤入管路中去。

According to the experimental conditions of our laboratory and the climate characters, the experiment made the preliminary searches on the cultivation medium, seed gemmation, watering, humidity, light condition and the two common transgenic methods of arabidopsis (Vacuum infiltration method and Dip method).

结合本地的实验条件和气候特点本实验着重在拟南芥的培养介质、播种、浇水、湿度、光照条件及转化的两种常用方法方面进行了探索，取得了一些突破性的结果。

Used as a general cleaning oil-free vacuum system before the pump to prevent oil pollution.

用做一般无油清洁真空系统的前级泵，以防止油污染。

It was found that lead oxides (including PbO and Pb〓O〓) reacted chemically with PTFE when heated in vacuum, generating PbF〓, element C, and lead carbides.

研究表明，铅氧化物（包括黄色氧化铅PbO和红色氧化铅Pb〓O〓）在无氧加热条件下均能同PTFE发生化学反应，生成PbF〓、单质C以及铅的碳化物。

As the frame of power transformation generating line is well adapted to the load, but not to the settlement, the vacuum preloading method is introduced as one of the most appropriate and economic way to the ground treatment in electric substation.

在软土地基处理中，真空预压法的应用日益广泛，由于变电管型母线构架对承载力要求不是很高，而沉降控制要求较高，因此变电所地基处理中真空预压法是一种经济合理的处理方法。

The mixture produced fromβ-pinene mainly containing geraniol and nerol,whose difference in boiling-point is only 2 C. They were separated by using the omethod of vacuum batch distillation and flash distillation with additives.

以β－蒎烯路线生产的香叶醇和橙花醇混合醇产品为原料，采用减压间歇精馏和闪蒸方法，通过添加络合剂提高产品的质量，实现了沸点差仅为 2℃的橙花醇和香叶醇的分离。

In the end. the application of the Zr-V-Fe getter in the electronic device, vacuum technology and scientific research are introduced.

同时，介绍了锆钒铁吸气剂在电子器件、真空技术和科学研究中的应用。

Graduated glass funnel, fritted glass base with side arm, joint flask, anodized aluminum clamp, vacuum hose

滤杯，玻璃烧结抽气滤头，集液瓶，铝制夹，硅胶管

Base on the experiment on the optical table, two setups are designed to diagnose plume in vacuum box.(4) Foundation information of MATLAB program is presented. Light wave front and light wave linearity transfer are simulated by using MATLAB. And the pole, globosity and cone plasma field interference figures are simulated by MATLAB, and reference fringe is added to the interference.

介绍了MATLAB语言的基础知识，MATLAB实现光波波前以及实现光波的线性传输的方法，并通过编写程序对各种不同的等离子体模型进行模拟，得到了柱状、球状及锥体时候的干涉图像，并可以在干涉图像中加入参考干涉条纹，可以直接得出相位差。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。