有管的

A thermionic tube having five ''.

有五个电极的热离子管。

A thermionic tube having two electrodes; used as a rectifier.

有两个电极的热离子管；作用相当于调整器。

A thermionic tube having four electrodes.

有四个电极的热离子管。

A thermionic tube having five electrodes.

有五个电极的热离子管。

A thermionic tube having three electrodes.

有三个电极的热离子管。

It was as big as a hub and as long as a thill. Duke Huan was frightened to cold sweat overall.

桓公吓得一身冷汗，他紧握着管仲的手，说道︰「喂﹗你可有看见了什么吗？

The reason was that the Navy wished to have an opportunity to pull the helicopter out of a submarine's torpedo tube.

原因是，海军希望有机会拉直升机从潜艇的鱼雷发射管。

Thus for a torus many new circumstances arise .

对于一个环管就有许多新的情形发生。

Results: Among the 47 cases, 33 cases were teeth pulpless tissue including 14 endodentically treated teeth and 14 cases were vital teeth with periodontitis, cracked tooth and occlusal traumatism.

结果：牙冠纵折多见后牙，以上颌第一磨牙为多见，其中无髓牙33例，牙折裂前有近一半曾作过根管治疗，活髓牙14例，存在不同程度的牙隐裂，牙周炎和咬合创伤。

One of two cylindrical cellular structures that are composed of nine triplet microtubules and form the ''.

中心体由九个三联体微管组成的两个圆柱体细胞组织之一，在有丝分裂中形成星状体

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。