Objective To study the diagnosis and surgical treatment of primary sacrum tumor.

The posterior rami of the lumbar spinal nerves were observed in 13 adult cadavers and 56 adult sacra.

在13具成人尸体和56块成人骶骨上对腰神经后支作了观察。

Methods: The structures concerned with sacral canal blocking were dissected in 50 sacra and 30 adult specimens.

方法：解剖观测了50块骶骨和30具成人尸体标本与骶管阻滞麻醉相关的结构。

They have long indulged in illicIt'sexual relations.

他俩早就偷香窃玉,暗自私通了.

Sorry, i will protect my a xing now, xing be in a daze.

不好意思, 我现在要去保护我的阿星了, 星.

In ancient times , rice was transferred to Beijing via rivers.

古代一批批漕粮通过水路运到北京.

Door-god worship originated from nature and worship in ancient times.

门神崇拜起源于人类远古时期的自然崇拜观念和神灵信仰观念.

The way of making iron in ancient times was very crude.

古代炼铁的方法相当原始.

In ancient times , people refer to the moon as the & quot ; ice wheel.

古时候 人们用冰轮来指代明月.

These , the sacra gentilitia, are well known.

这些 sacragentilitia [氏族祭典]是众所周知的.

In the latter case, abscessation may be present inside the calvarium.

在后一种情况下, 颅内可能有脓肿形成.

A parulis, or gum boil, may be present near the involved tooth.

在患病牙齿附近可见齿龈脓肿或齿龈疖.

These conditions might not be present the next time.

这种条件下一次可能不再出现.

It was right that I should be present.

我自然应当到场.

By six o'clock the horses were all saddled, the grub wagon ready.

六点钟,马都备了鞍, 装粮食的大车也安排就绪.

He saddled a horse and rode off towards the city of York.

他备鞍上马,向约克城奔去.

The cowboy was saddled up.

牛仔已经穿扎停当,准备上马了.

The horses were saddled up and ready to move.

马已上好了鞍,只等出发了.

She saddled up a horse.

她给一匹马套上了马鞍。

Gradually, the separate sine waves have become visible.

逐渐地, “正弦波”曲线出现明显的分离.

During the manufacturing process a plant usually experiences a degree of material shrinkage.

在生产过程中,工厂通常总要受到一点材料上的损失.