外部直径，外圈的宽度和轴座直径相同的尺寸标准的球面滚子轴承范围。
The outside diameter, outer ring width and shaft seat diameter are identical to the dimensions of the standard spherical roller bearings range.
弯管圆度应保证弯管上任何一点的外部直径不得大于标准直径的 2%。
The Out-of-roundness is not more than 2% of the outside diameter of the pipe at any point.
一码的布料足够罩住18英寸直径帽盒的外部。
One yard of fabric is sufficient to cover the exterior of an 18-in.-diameter hatbox.
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