既然铁氟龙以及聚乙烯之导管内径比金属导体的外径大出许多，因此金属导体仅接触到单一的导管，导体几乎受到空气完美隔离。
Since the inner diameter of the Teflon and PE tubes is much larger than the outer diameter of the metal conductor, the metal only touches the tubes in a single line.
清管和测径用的清管器直径通常比管道内径要过盈5%至8%。
Pigging and caliper with clear pig diameter than pipe diameter usually to interference by 5% to 8%.
第二个孔内径有一个比第一口大。
The second orifice has an inner diameter larger than that of the first orifice.
文中采用示踪法研究了四氯化钛氧化反应器内径向射流混合特征，探讨了射流环开孔结构和动量比等因素对射流混合效果的影响。
The process of jet mixing in the reactor was studied with tracer technique and the effects of the opening structure on the wall of the feed ring and the momentum ratio to the jet mixing were analyzed.
为了分析管道厚度对电容传感器的作用，定义了径极比（传感器管道内径与外径之比）的概念。
In order to analyze the effect of pipeline thickness on ECT sensor, radius-electrode ratio is defined as the ratio of inner radius and outer radius.
甲醛初始浓度、空速及反应器内径的增加，都会使甲醛的脱除率下降而脱除甲醛的比能耗则相应减少。
HCHO removal efficiency and the specific energy consumption of removal formaldehyde from gas streams decrease with increasing inlet HCHO concentration or GHSV or the diameter of reactor.
甲醛初始浓度、空速及反应器内径的增加，都会使甲醛的脱除率下降而脱除甲醛的比能耗则相应减少。
HCHO removal efficiency and the specific energy consumption of removal formaldehyde from gas streams decrease with increasing inlet HCHO concentration or GHSV or the diameter of reactor.
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