They were also called hand plates, swallow-tail plates, close plates and cane plates in the Ming Dynasty.
明代还有手牌、燕尾牌、挨牌、藤牌等称法。
The swallow-tail tunnel is a new structure in recent years, which consists of a small space tunnel and large-arch tunnel.
燕尾式隧道是国内近几年出现的一种新的隧道结构形式，它由小间距隧道、大拱隧道组成。
The cross section of the resistant grinding slot is arc or swallow-tail form or any other form fitted to install rolling resistant grinding roll.
所述耐磨槽的横断面形状为弧形或燕尾形或其它适合安装可以滚动的耐磨辊的形状。
The design principle of blackbody swallow tail cavity is discussed, its blackbody simulating mathematic equations and the geometric parameters of cavity are given.
讨论黑体燕尾腔的设计原理，写出它的黑体模拟数学式，给出适用腔体的几何参数。
Here you can see the rounded saddle-back style houses typical of regional working and farming classes and, in the background, the pointed, swallow tail roofs that were once the reserve of the gentry.
在那里你会看到圆形的想马鞍形状的房子，区域工作和农业阶层的建筑代表。在屋子的后面，尖尖的燕尾状的屋檐让人想起了绅士的装扮。
For the first 3-6 months, you really shouldn't worry about turning or doing maneuvers, so whether your board is a swallow tail or a pintail or even if it only has one fin is really pointless.
开始的3 - 6个月里，你不用过于担心转弯和制动，因此不管你的板子是燕型板尾，鸭尾型或者只有一个尾鳍这都不是要点。
For the first 3-6 months, you really shouldn't worry about turning or doing maneuvers, so whether your board is a swallow tail or a pintail or even if it only has one fin is really pointless.
开始的3 - 6个月里，你不用过于担心转弯和制动，因此不管你的板子是燕型板尾，鸭尾型或者只有一个尾鳍这都不是要点。
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