分析了调制型捷联系统的误差特性并建立了四位置转位方案模型。
The error characters of rotary SINS are analyzed and the model of four-position indexing scheme is established.
针对刚体导引四位置铰链四杆机构综合问题，进行了可视化的程序开发与设计。
A visual program for synthesis problems of rigid body guidance flat four-bar mechanism with four-position is developed.
因为这场平局罗马的第四位置被那波利夺得，纳波利在贝尔·加莫2 - 0战胜了亚特兰大。
The draw sees Roma leapfrogged by Napoli who take fourth place after a 2-0 victory over Atalanta in Bergamo.
我们必须保持第四的争夺，现在我们还有两个主场，如果我们能够保持现在的势头，拿到最大的分数，我们将接近前四位置。
We will keep fighting for this fourth place. We've a couple of home games to play now and if we can keep the momentum going and take maximum points then we'll edge into the top four.
我们必须保持第四的争夺，现在我们还有两个主场，如果我们能够保持现在的势头，拿到最大的分数，我们将接近前四位置。
We will keep fighting for this fourth place. We've a couple of home games to play now and if we can keep the momentum going and take maximum points then we'll edge into the top four.
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