upper ring

The infinite upper ( lower ) triangular matrix Division ring is discussed.

论文对体上一般的无限上 ( 下 ) 三角阵(不要求是行有限的)进行了研究.

Defective sealing ring between chain tensioner and upper chain case cover.

链条张紧器与上部链条箱盖间的密封圈损坏。

train going towards the upper ring is arriving, please let the passengers alight first

开往上环的列车即将到达，请让车上的乘客先下车

during this operation, the upper ring indicator (7) will move to the force level corresponding to the required deflection.

在该操作过程中，上部的指示器会根据偏度调整到相应的力度。

The sampler was immersed in the liquid by lifting the central rod through the upper ring.

通过取样器上端的环提起中心杆使取样器浸入液体中.

the upper ring or rings are to prevent compression leakage; the lower ring or rings control the amount of oil being deposited on the cylinder wall.

上部的活塞环用来阻止压缩空气泄露；而下部的活塞环用来控制气缸壁上存留下来的机油数量。

The gastric banding procedure places an inflatable silicon ring around the upper portion of the stomach.

胃带策略使用一条充气的硅环环绕在上腹部。