真空

According to the first, intravertebral vacuum phenomenon is the result of vertebral osteonecrosis,8,14,17,18 whereas the second theory supports that intravertebral vacuum phenomenon signifies nonunion and pseudarthrosis of a vertebral fracture.20,21 A third theory, which did not find appeal, suggested that intravertebral gas could be of intradiskal origin, leaking to the vertebra through the fracture, since a high coincidence (86%) of intervertebral disk vacuum was noted in cases of intravertebral vacuum.6

第一种理论认为椎体内真空现象是椎体缺血性坏死的结果[8，14，17，18]，而第二个理论认为椎体内真空现象意为着骨不连和假关节[20，21]，另外目前还未广泛接受的第三个理论认为椎体内气体可能是从椎间盘中从椎体骨折裂隙中流入的，椎体内出现真空现象的同时伴有椎间盘内真空的比例很高（86％）[6]。

The theory of Quantum Chromo-Dynamics, which describes the strong interactions, has two different vacuum states—perturbative vacuum and physical vacuum.

强相互作用的基本理论量子色动力学有微扰真空和物理真空两种不同的真空态，带色的夸克和胶子不能在通常的物理真空中运动，而只能被禁闭在色中性的强子中。

In the deep processing of agricultural and food products, there are some key technological problems of system design on the domestic traditional reelable vacuum aluminium coating system, including mass process parameters, bad process duplication, unstable production quality caused by complex operation, and high equipment failure rate. A newly developed reelable vacuum aluminium coating system with 1500 mm-wide thin plastic films was designed with high vacuum technology in order to satisfy the vacuum aluminum coating of more than 1500 mm-wide, such as polyethylene terephthalate, oriented polypropylene, polypropylene cast film, polyvinyl chloride.

为满足农产品及食品深加工中1500 mm幅宽以上的聚脂薄膜、定向聚丙烯薄膜、聚丙烯流涎薄膜、聚乙烯薄膜的真空镀铝，针对国内卷绕蒸发式真空镀膜机设备存在的工艺参数多、工艺重复性差、操作复杂、产品质量不稳定、设备故障率高等问题，采用高真空技术研制了宽幅卷绕蒸发式高真空镀膜机。

Preparation thechniques of buffer layers include both vacuum technology and non-vacuum technology. Chemical solution deposition method, a typal non-vacuum technology, is a high potential technique for large-scale industrial production since no expensive high-vacuum systems are used.

缓冲层的制备技术可分成以真空技术和非真空技术两大类，非真空技术以化学溶液沉积(Chemical Solution Deposition，CSD)为代表，不需要昂贵的真空系统，最可能实现大规模工业生产。

Preparation thechniques of buffer layers include both vacuum technology and non-vacuum technology. Chemical solution deposition method, a typal non-vacuum technology, is a high potential technique for large-scale industrial production since no expensive high-vacuum systems are used.

缓冲层的制备技术可分成以真空技术和非真空技术两大类，非真空技术以化学溶液沉积(Chemical Solution Deposition，CSD)为代表，不需要昂贵的真空系统，最可能实现大规模产业生产。

The function of air ejector: The air in the shell must be extracted by air ejector since the commencement of condenser due to the vacuum condition for condenser. During the operation of condenser, the air carried by exhaust steam of steam turbine and the air leaked from imperfect vacuum system must be continuously extracted so as to maintain the condenser vacuum.

抽气器的作用：由于凝汽器处于真空条件下工作，所以在凝汽器开始运行时，必须要用抽气器将其壳体内的空气抽出以建立真空；并在凝汽器运行过程中，将汽轮机排汽中夹带的空气和从真空系统不严密处漏入的空气不断抽出，以维持凝汽器的真空。

A high-quality neon tube manufacturing process include: bombardment degassing, vacuum and maintain vacuum and inert gas filled into the three major areas, while the bombardment degassing is the primary link, if a link is not sure is good, even if the neon vacuum pumped,"ultra-high vacuum", the use of neon tubes can not be long.

一根优质的霓虹灯管的制作工艺包括：轰击去气、抽真空及保持真空、充入惰性气体三个大环节，而轰击去气是首要环节，如果在个环节没把握好，就算把霓虹灯的真空抽到&超高真空&，霓虹灯管也使用不了多长时间。

The main product comprises silp-valve vacuum pumps, root vacuum waterring vacuum pumps, series roary vance vacuum pumps and various kinds of vacuum pumps system,Our products are widely used in areas,covering metallurgy, chemical industry,medical and pharmaceutical appliction, light and textile industry, electrical industry, defence scientifice researches etc,.

我厂主要产品有：滑阀真空泵、罗茨真空泵、往复真空泵、水环真空泵、旋涡泵各类真空机组、及真空应用设备，与供氧设备，其也通用设备制造、加工、修理。真空浸渍我厂产品广泛应用于冶金、化工、医药、经纺、电子、国防、科研等部门。特别H-8B型泵，在原有基础上经过改进，获得了更高的真空度和使用寿命。

Theory structure is presented in this paper about press plate wood vacuum dryer, and model of theoretical preheating time is built related to wood vacuum drying technology.

本文对压板式木材真空干燥机进行了结构介绍，以模型的形式确立了木材真空干燥工艺的理论预热时间，并以ZKY-01型箱式木材真空干燥机为试验仪器，采用波动压力方法对柞木和柯木进行真空干燥工艺试验。

The main source of impurities in the vacuum vessel is not due to the residual gas composition but rather to the release of containts from walls during the startup of the plasma discharge.

超高真空的除气不只是抽出残存在真空容器内的大气，而是进一步排除来自于容器壁的气体杂质，影响真空度的主要因素是等离子体放电初期从真空室器壁逃逸出来的杂质粒子。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。