An oblong crystal the size of a cigarette packet was found on a ship next to a pair of dividers, suggesting that it was part of the navigational equipment.

科学家在船只废墟中一对圆规旁边发现一块香烟盒大小的长方形水晶，表明这是航行设备的一部分。

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Flat tube in any cross section are oblong, the length of the shaft according to the tube pitch to determine the size of.

扁管在任何一个截面均为长圆形，其长短轴根据管心距的大小来确定。

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An oblong crystal the size of a cigarette packet was next to a pair of dividers - suggesting it was part of the navigational equipment.

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