Focal Length Ratio 焦距变换比率 ; 焦距比 ; 焦距换算倍率
width to length ratio 宽长比 ; 宽度长度比
blade length ratio 叶片相对高度
blade diameter length ratio 叶片径高比
displacement-length ratio 排水量船长比
draft-length ratio 吃水船长比
Son with flying eaves, rafter length ratio is about five to two.
檐椽与飞子的长度之比约五比二。
A new algorithm is proposed for calculating the maximum flow length ratio of plastic product.
提出了计算塑料制件最大流长比(流动长度与厚度的比值)的算法。
The sawing speed curve is unchangeable, but the feed speed curve can be different with different length ratio of members of the feeding mechanism.
锯切速度曲线是不可变的,但进给速度曲线随进给机构杆长比的不同而变化。
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