家犬

Five healthy hybrid dogs were used in this study. Titanium nail and Bio-Oss bone implant materials were designed and produced by Xi'an Zhongbang Titanium Biological Materials Co., Ltd.

实验动物为5只健康杂交家犬；种植体钛钉和Bio-Oss骨移植材料均由西安中邦钛生物材料有限公司设计制造并提供。

METHODS: The first, second and third premolars of dogs were uprooted and received implantation 3 months later.

拔除家犬下颌第1，2，3前臼齿，3个月后行种植术。

A wire-haired dachshund that held the record as the world's oldest dog and celebrated its last birthday with a party at a dog hotel and spa has died at age 21 — or 147 in dog years.

这只硬毛德国种猎犬的最后一次生日在一家犬旅馆度过，当时人们为它举行了生日派对，它还享受了一次水疗服务。

Dogs were first animal domesticated by man, and originated from gray wolves.

因此，家犬的迁徙和扩散历史，也就带有了人类迁徙的烙印。

Dogs were first animal domesticated by man, and originated from gray wolves.

在人类把狼驯化成家犬之后，它就一直伴随着人类进行着不断的迁徙和扩散。

As a companion piece to THE CALL OF THE WILD, WHITE FANG (1906) tells an interesting tale of the reverse transformation of an arctic " wolf "(actually 3 quarters wolf and 1 quarter dog) into a domesticated dog called White Fang.

作为《野性的呼唤》的姐妹篇，《白牙》(1906)这个有趣的故事讲述了一只北极狼(其实1/4是狗、3/4是狼)如何逐渐变成一只取名&白牙&的家犬的相反过程。

These friendly dogs, which were first brought from Asia, were used as watchdogs even in Roman times.

这些第一次从亚洲引进的友好的狗，即使在罗马时代也是被人们养做看家犬。

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。