仪式权杖柄是用一种小型的北极独角鲸的牙齿制成的。门柄是用海象的牙齿制成的。
The shaft of the ceremonial mace is the whorled tusk of a narwhal, a small Arctic whale. The door handles are of walrus tusk.
科学家对于实验室经常使用的两种黏菌—绒泡菌和盘基网柄菌—已经十分了解,对于地球上的其他黏菌却知之甚少。
Scientists know a lot about the two lab-friendly species Physarum and Dictyostelium, but they still know very little about the many other slime molds on earth.
为了帮助亲属,盘基网柄菌需要一种识别它们的方法。
To help relatives, Dictyostelium needs a way to recognize them.
Double grip shields thus presupposed or imposed an extremely dense formation.
因此双握柄的盾牌预示了,或揭示了一种极为密集的阵型
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