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Vacuum tubes are bulky and produce a lot of heat, so first-generation computers were large and required extensive air conditioning to keep them cool.
中文意思:
真空管体积大且发热严重,因此第一代计算机体积庞大,并且需要大量的空调设备保持冷却。


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Vacuum oven is designed specially for drying of material which is thermo-sensitive of decompounded and oxidative easily it can be filled with inert gases, which is especially for a rapid drying of some compound material. 真空干燥箱专为干燥热敏性、易分解和易氧化物质而设计,能够向内部充入惰性气体,特别是一些成分复杂的物品也能进行快速干燥。
Vacuum packer can complete the whole process of pumping air into vacuum state, sealing, lettering, cooling and exhaust in terms of the process, but just need to press the vacuum cover. 产品说明:真空包装机只需按下真空盖即自动按程序完成抽真空、封口、印字、冷却、排气的全过程。
Vacuum pressure will be plotted with temperature against time and can be saved for later analysis. 真空压力将绘制在温度时间图上,并可以存储以便以后使用。
Vacuum processes Experience in OLED evaporation &encapsulation are advantage. : New graduates in physics, chemical engineering, material engineering, or related majors are also considerable. (真空工艺﹕有OLED蒸发和封装经验者优先考虑﹐如物理﹐化学工程﹐材料工程或相关专业的应届毕业生也可考虑。)
Vacuum toilet is a new-type one for environmental protection in China and has advantages of water saving with very weak stink, effective flushing, etc. 摘要真空厕所在国内属于新型的环保厕所,具有节水、臭气少、冲刷效果好等优点。
Vacuum tubes are bulky and produce a lot of heat, so first-generation computers were large and required extensive air conditioning to keep them cool. 真空管体积大且发热严重,因此第一代计算机体积庞大,并且需要大量的空调设备保持冷却。
Vacuum tubes require DC voltage sources as well. 真空电子管也要求以直流电压为电源。
Vacuum, gravity flow, and other solids discharge, according pipeline flow chart meters (PID) equipment layout of the elevation requirements. 对真空、重力流、固体卸料等情况,一律按管道仪表流程图(PID)的标高要求布置设备。
Vader murdered Ozzel and appointed Piett to the post of admiral. 震怒不已的维德立刻处决的欧兹,并让皮耶特接替了上将的职位。
Vaginal epithelial ovarian endocrine by the direct impact of their level of maturity and intimate person hormone levels were positively correlated. 阴道上皮受卵巢内分泌直接影响,其成熟程度与体内此人激素水平呈正相关。
Vaginal exfoliated cells of the vast majority of cervical and vaginal epithelium, is rare in endometrial cells. 阴道脱落细胞绝大数是宫颈及阴道上皮,较少见的是子宫内膜细胞。
 
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