设计并制造了一种新型的永磁式单相单拍运行步进电动机，它能在单极性电脉冲的控制下实现连续的起动和步进运动，电机绕组通电和断电时各转动一个步矩角。
A new type single-phase permanent-magnetic stepper motor is designed and manufactured. It realizes the stepping rotating action controlled by the inputting electric pulse's on-or-off point.
苏富比拍卖行16日以4544万瑞士法郎(约合人民币3亿元)高价拍出一枚重达24.78克拉的粉色钻石，刷新全球单颗钻石/珠宝拍价纪录。
A 24.78-carat pink diamond was sold at CHF45.44m (RMB300m) in an auction held by the Sotheby's Tuesday, breaking the record for any diamond and jewelry ever sold at an auction.
本文基于天线阵列的单次快拍数据，分析和校正了自适应天线的单元互耦效应。
Based on a single snapshot data, the effect of mutual coupling on the performance of adaptive arrays is studied.
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