导向扩张头中部的外直径大于通管的外直径。
The external diameter of the middle part of each guiding expansion head is larger than that of the through pipe.
是一个滑动配合联轴器，连接管或管道的外直径。
The solid sleeve is a slip fit coupling that fits the outside diameter of the tubing or fitting.
这两道天拱可能直径长达200英尺，高达200英尺，如果户外条件较好，可以在1000英尺外看见。
The arcs may be as long as 200 feet across and 200 feet high, and depending on outdoor conditions, they may be visible up to 1, 000 feet away.
外由两个直径等倍递增的圆组成，象征着我们的事业不断扩散；
Outside the circle are two circles with multiplying incremental diameters, representing constant expansion of our business.
为了不使镍环起槽，外沟直径比内沟大，这在结构上解决了镍环起槽问题。
In order not to make nickel ring up tank, outside groove diameter ratio inside groove is big, this on the structure solved the nickel ring grooving problem.
在曲线处的内轨和外轨通常打磨成不对称的形状，目的是改善共形接触，增大内外车轮滚动圆的直径差，利于导向。
Curves generally are ground with asymmetric profiles that promote conformal contact in order to take advantage of the rolling radius difference and enhance steering.
通过对进口切粒机动刀材质硬度分析和金相分析，确认其可使用的最小外圆直径。
Through analyzing material hardness and metallography of moving knife of import cutter, its minimum round diameter outside used is confirmed.
除治疗组激光虹膜切除术后瞳孔直径明显大于对照组外，未见其他眼部和全身的副作用。
No ocular and systemic side effects were found in treatment group, except pupil diameter was obviously larger in treatment group than that in control group.
当柱塞自由移动时，柱塞的外体直径刚好能够满足生产油管内径密封需求，提供最大的密封保障。
The outer-body diameter of the plunger is cut just under production tubing drift to provide the maximum seal while the plunger moves fr eely.
滚研机是小直径工件外圆表面研磨加工设备之一，该机导轮表面形状直接影响加工精度。
The roll lapping machine is one of the equipments processing the excircle surface of minor diameter workpiece by lapping. The working accuracy is affected directly by the guide wheel of this machine.
外压设备的抗失稳能力(稳定性)主要取决于壳体的几何尺寸，即直径、长度和壁厚，其中长度和直径起着决定性作用。
The stability of external pressure vessel mainly depends on crust's geometrical cross-section including diameter, length and wall thickness. Among them, the length and diameter are crucial.
脑血管的直径可通过细胞外的钾调节，钾是体细胞内外常见的元素。
The diameter of blood vessels in the brain can be modulated by extracellular potassium, a common element present inside and outside all cells of the body.
另外刘遇晓圆圈，直径2和1米，被发现在同一届域的约50米外的主要型态。
Two other smaller circles 2 and 1 meter in diameter were discovered in the same field some 50 meters appart from the main formation.
另外刘遇晓圆圈，直径2和1米，被发现在同一届域的约50米外的主要型态。
Two other smaller circles 2 and 1 meter in diameter were discovered in the same field some 50 meters appart from the main formation.
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