Relation of polarizing prism s length aperture ratio and material characteristics;
偏光棱镜长度孔径比与材料特性的关系
the ratio of the circumference to the diameter of a circle.
圆周长度与圆的直径长度的比。
Three diameters of straight pipe are required on the valve outlet.
阀门出口处需要配置三倍直径长度的直线管路。
The bridge is two leg diameters high and is not self-heating.
这种连桥有两段直径长度那么高，并且不会自行发热。
length diameter ratio
长径比（长度与直径之比）
The length of such a segment.
直径长这样一段的长度
Teacher: What's the relationship between the radius and the diameter of the same circle?
师：直径的长度和半径有什么关系？
It measures three feet in diameter (height/length).
它的直径(高度／长度)是3 英尺。
It measures three feet in diameter [height, length].
它的直径[高度，长度]是3英尺。
Wood screws are made in a wide variety of diameters and lengths.
木螺钉的直径和长度各异。
a linear unit (1/40 inch) used to measure diameter of buttons.
测量纽扣直径的长度单位。
Fiber length to rotor diameter not near to unity.
纤维长度与纺杯直径不一致（协调）。
Study on the Measurement of Roundness and Straightness for the Inner Hole of the Large Diameter Long Pipes;
大口径长管内孔的直线度、圆度测量研究
Experimental analysis of artificial deep foundation with large diameter and length shorter than 6 metres
长度小于6m的大直径人工挖孔深基础试验研究
Certainty of 1 600 g balloon length and burst diameter for GCOS high-altitude station in China
我国GCOS高空站1600g气球长度与爆破直径的确定
Behaviour of Piled Rafts with Piles of Different Lengths and Diameters under Vertical Loading
竖向荷载作用下不同长度和直径桩的桩筏分析
Influence of the sampling tube diameter and length on the measurement of surface pressure for trains
采样管直径及长度对列车表面压力测量的影响
Thickness or diameter, as of sheet metal or wire.
直径，厚度金属板的厚度或线的直径
How much is the diameter of the sun longer than that of the earth ?
太阳的直径比地球的直径长多少?