LPC2300以太网连接原理图.用LPC23系列开发以太网必备.

关于百货供应链的设计方案，电子商务方面，包括了最全的内容-department store on the supply chain design, e-commerce, including most of the contents of the entire

SPI串行Flash在数据存储系统中的应用-SPI serial flash data memory system apple

红外线数字转速表具有采用红外发射、接收二极管作为速度检测、检测装置，由此产生测量脉冲-Infrared ray numeral turn soon watch to have to adopt a red outside blast-off, receive diode as speed an examination, examination equip, produce diagraph pulse from here

心率指心脏每分钟搏动的次数, 它能够反映心脏的工作状态。正常心率决定于窦房结的节律性, 成人静息时约60～100 次/ min , 平均约75次/ min。心率可因年龄、性别及其他因素而变化。初生儿心率约130 次/ min , 随年龄增长而逐渐减慢, 至青春期乃接近成人的心率。女性心率比男性稍快 运动员心率较慢。成人安静心率超过120 次/ min 者, 为心动过速 低于40 次/ min 者为心动过缓。心率受植物性神经和体液因素调节。-Heart rate means the number of pulse per minute, it can reflect the work of the state of the heart. Normal heart rate determined by the rhythm of the sinoatrial node, resting adult is about 60 ~ 100 times/min, an average of about 75 times/min. Heart rate may be due to age, gender and other factors change. Heart rate of newborn infants of about 130/min, growth has gradually slowed down with age, to adolescence adult heart rate is near. Women slightly faster rate than men athletes slow heart rate. Quiet adult heart rate over 120 times/min, and for the tachycardia less than 40 times/min for bradycardia. Heart rate by the plant regulate neural and humoral factors.

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在空调系统风扇的控制中，介绍一种高效率低损耗的开关磁阻电机控制方法，-In the air-conditioning system fan control, presents a low-loss high-efficiency switched reluctance motor control method,

ECG related notes. clearly states the need of right leg drive circuit.

垃圾压缩车的发展-The development of compressed garbage truck

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