手柄并不是关于中心线对称。表中的尺寸表示最大操作半径。
Handle is not symmetrical about stem centerline. Dimension shown represents the longest operational radius.
图上有各种形式的线条，诸如：边框线、实线、虚线、剖面线、中心线、引出线、尺寸线、断裂线、假想线。
There are various types of lines on the drawing such as: border lines, visible lines, invisible lines, break lines, phantom lines.
这个尺寸必须至少为从阀门中心线至手轮距离长度的两倍。
This dimension must be at least twice the dimension from center line to handwheel.
订购地轴架时，请提供从阀门水路中心线到地面的距离尺寸。
When ordering a floor stand - the dimension from the centerline of the valve waterway to the top of the floor must be furnished.
订购时，注明描述信息和从阀门中心线至手轮顶部或螺母的加长长度尺寸。
To order, specify description and extension length from center line of valve to top of handwheel or nut.
订购时，注明描述信息和从阀门中心线至手轮的加长长度尺寸。
To order, specify description and extension length from center line of valve to handwheel.
驱动长度尺寸从交换机上安装孔的中心线所示。
Actuation lengths are dimensioned from centerline of switch upper mounting hole as shown here.
该处理设备包括一处理模具，所述成型模具以钢筋纵肋中心线分为上下两部分形状和尺寸相同的上模和下模。
The device contains a process mould which is divided into upper and lower moulds with same shape and size by the center line of the steel longitudinal rib.
当被测要素为轴线、中心线或对称平面时，指引线的箭头和基准符号应与该要素的尺寸线对齐。
If the element being tested with tolerance requirements is an axis, centre line or symmetrical plane, the arrow and datum symbol should be aligned to the dimension line of that element.
当被测要素为轴线、中心线或对称平面时，指引线的箭头和基准符号应与该要素的尺寸线对齐。
If the element being tested with tolerance requirements is an axis, centre line or symmetrical plane, the arrow and datum symbol should be aligned to the dimension line of that element.
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