At these two corners they must be double from the bottom all the way to the top, and fitted into a single ring; both shall be like that.
板的下半截要双的，上半截要整的，直顶到第一个环子；两块都要这样做两个拐角。
The fraud ring, which officials said had been operating since 2007, took advantage of the way the two-piece COINS are made.
这个诈骗团伙，自2007年便开始作案，他们利用了面值一元和两元硬币的制造原理。
Two-way pressure has mounted on ball bearings between the shaft and two outer rings, in the middle ring and outer ring were added between the steel ball, able to withstand the two-way axial load.
双向压力球轴承有安装于轴上的中间圈和两个外圈，在中间圈与外圈之间分别加有钢球，能够承受双向轴向负荷。
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