腔静脉和右心房的

Puncture into Attain long sheath of CS through left infraclavicular vein, guided by CS pipe, take sheath into CS, make reverse contrast of heart vein with Attain saccule contrast pipe, put the left ventricle electric pole into the vein through sheath, then bring it into right ventricle apex and right cardiac ear through the electric pole of right ventricle and atrium, connect it with 3-cavity pulse generator, which is buried under left chest skin.

方法］经左锁骨下静脉穿刺送入Attain冠状静脉窦长鞘，在CS导管的导引下，将鞘送人CS，用Attain球囊造影导管进行心脏静脉逆行造影，将左心室电极经长鞘放入选择的静脉，送人右心室及右心房电极至右室心尖和右心耳。与三腔脉冲发生器连接，脉冲发生器埋藏于左上胸皮下。

In an attempt to determine non-invasively the sino-atrial conduction time, we recorded the sinus node electric activity by placing bipolar electrodes at the level of the right atrium anteroposteriorly across the chest of the dog.

本实验采用成年狗，以6极心导管电极从颈外静脉插至上腔静脉与右心房交界处，能记录到一个在心电图P波以前19—26毫秒的&P前波&。通过夹除窦房结和高血钾等实验证明，&P前波&可与P波分离而存在，并随窦房结夹除而消失。

To confirm the hypothesis that the pathogenic mechanism of air infusion in the circulatory system is not bubble blockade of blood vessels but the consequence of anoxia of the vital organs,different amounts of air were injected into the great sapenous vein of 22 dogs,and then heart rate,cardiac rhythm and bubble sound were monitored with a Doppler probe at the precordial region.

为探讨循环系统内注入空气致病机理，向22只狗大隐静脉内注入不等量空气并在心前区用Doppler监测心率、心律和气泡音。结果发现，维持心前区Ⅳ级气泡音的17只狗，依次出现呼吸和心率加快、心律紊乱、心率缓慢、腹式呼吸加强，其中12只狗继续缓慢注入空气至呼吸停止，任选10只狗胸外按压，8只狗复苏后行为无异常，2只狗未能复活。另2只狗呼吸停止后立即尸检，可见右心房、室、腔静脉和肺血管中有大量气泡。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。