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high vacuum phototube 高真空光电管
The whole apparatus operates under high vacuum. 整个装置在高真空下运转。
To preserve(food,for example) by rapid freezing and drying in a high vacuum. 使冷冻干燥通过在高度真空状态下迅速冷冻并干燥来保存（如食物）。
To preserve(food, for example) by rapid freezing and drying in a high vacuum. 使冷冻干燥通过在高度真空状态下迅速冷冻并干燥来保存（如食物）
In high vacuum state,the damp water in leather can be largly pumped. 由于皮张处于高真空状态，水分抽出量增大，可缩短干燥时间令产量上升；
The cubage of the tube is small and high vacuum will be got very quickly. 计算结果表明：二极管的工作场强低于真空闪络场强；
A high vacuum in the fuel tank can cause atmospheric pressure to collapse the tank. 燃油箱内的高真空，会引起大气压力压塌油箱。
Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps. 可单独作低真空泵用,也可与其它高真空泵组合作前级泵用。
Leakage and degassing rate is an important parameter to evaluate the performance of high vacuum multi-layer insulated dewar. 漏放气速率是评价高真空多层绝热杜瓦性能的一个重要指标。
Under certain condition,methane can reacts with SiO_2 or high vacuum grease,generating Mylar Polyster. SiO2作掩模时,在一定的条件下,CH4会与SiO2或者真空硅脂发生反应,生成聚脂薄膜。
Very importantly, there is a vacuum chamber with high vacuum pumps and electronics to run the mass spectrometer. 拥有真空泵和电子装置的真空室质谱仪运行中重要组成部分。
The method of increasing the unmaintained dewar high vacuum lifetime is clarified. 提出了保持杜瓦长期高真空状态的方法。
GID electric high vacuum butterfly valve uses electric device to drive the stemdisc to perform openclose action. GID型-电动高真空蝶是以电动装置驱动阀杆与阀板执行启闭动作。
GD high vacuum flapper valve is used to put through or cut off the airflow in vacuum pipeline. GD型高真空挡板阀用于接通或切断真空管路中的气流。
Germany Busch Vacuum Pump, which owns high vacuum degree, low noise and long service life, is adopted. 德国贝克的真空泵，真空度高，噪音低，寿命持久。
The difference between leak rate and rate of pressure rise of high vacuum pneumatic operation baffle valve is analyzed. 本文通过高真空气动挡板阀的数据分析来说明漏率和升压率在高真空范围内二者之间的差异。
The substitution of evacuated powders for high vacuum alone will usually improve the insulation by reducing the radiant heat transfer. 只需用抽空气体的粉末而不用单纯的高真空，一般便可减少辐射热传输，从而提高绝缘度。
XPS results suggest t hat high vacuum ambient or appropriate N 2 ambient is needed for growth of stoic hiometric AlN films. X-光电子能谱测试表明 ,要获得接近理想化学配比的 Al N薄膜 ,需要高真空淀积气氛或合适的 N2 气氛 ;
GDC-JQelectro high vacuum butterfly valve uses electromagnetic force to directly drive valve disc working. thus to make valve opened ro closed. GDC-J型电磁高真空挡板阀是以电磁力为动力直接带动阀板动作，使阀门开启或关闭。
GID electric high vacuum butterfly valve uses electric device to drive the stem and disc to perform open and close action. GID型电动高真空蝶阀是以电动装置驱动阀杆与阀板执行启闭动作。