Double screw pump as a positive displacement pump, the pump suction chamber should be closely separated and discharge chamber inside.
双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。
Displacement indicates engine size, and compression ratio compares the total cylinder volume to compression chamber volume.
位移表明发动机的大小，和压缩比比较气缸总容积压缩室容积。
Figure 7. Case 5. Four-chamber view showing displacement of the heart to the right.
图7病例5四腔心切面显示心脏向右侧移位。
Figure 7. Case 5. Four-chamber view showing displacement of the heart to the right.
图7病例5四腔心切面显示心脏向右侧移位。
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