Tachycardia may result from pain, apprehension, hypoventilation, or hypovolemia.心动过速可由于疼痛 、 恐惧 、 通气不足或低血容量引起.The patient has dyspnea, tachycardia, and cyanosis.病人呼吸困难, 心动过数及发绀.With atropine, ocular effects are accompanie...
Objective : To study the influence of different thickness to In - Ceram restoration.目的: 研究不同厚度In Ceram 全瓷修复体对整体颜色的影响.Each group has 10 models made in IPS - Empress and 10 made in In — ceram Alumina.每组20个,IPS-Empress和In-c...
移频键控是短波数字通信中常用的一种调制方式.The Frequency Shift Keying modulation is widely used in HF digital communication.本文研究了一种基于自适应算法的解调差分相移键控(DPSK)信号的方法.This paper deal with the DPSK demodulation method based on adaptive algorithm.相移键控...