The end surface of spiral channel is sealed by welding, therefore the sealing performance is good with reliable structure.

螺旋通道的端面是焊接密封的，密封性能好，结构可靠。

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Objective:Renal oncocytoma of the spiral CT basis of performance and pathology and to improve the accuracy of their diagnosis.

目的：探讨肾嗜酸细胞瘤的螺旋CT表现及病理基础，以提高对其的诊断正确率。

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Objective To investigate the intrahepatic cholangiocarcinoma of dynamic contrast-enhanced spiral ct performance and identification with the other elements of liver tumors.

目的探讨肝内胆管细胞癌的螺旋CT动态增强表现及与其他肝内肿瘤的鉴别要点。

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The performance report also details what it calls the "downward spiral of decline" on the High Street.

BBC: Mary Portas unveils report into High Street revival

At the same time, the connections of the spiral to the rest of the movement are far more accurate, also enhancing performance, and eliminating the need for fiddly adjustments.

ECONOMIST: A luxury watchmaker is putting silicon in its timepieces