缺

Results 12 single lower incisor absence patients, of whom 6 combined with tooth extraction;3 used interproximal enamel stripping and the rest 3 combined with prosthetics;16 double lower incisors absence patients,of whom 10 combined with tooth-extraction and the rest 6 combined with prosthetics.

结果：12例单个下切牙先天缺失患者中，有6例结合减数矫治，3例采用邻面去釉技术，3例结合修复方法；16例两个下切牙先天缺失患者中，10例减数矫治，6例采取缺牙修复。

But these were not the two Cats which I brought on Shore at first, for they were both of them dead, and had been interr'd near my Habitation by my own Hand; but one of them having multiply'd by I know not what Kind of Creature, these were two which I had preserv'd tame, whereas the rest run wild in the Woods, and became indeed troublesom to me at last; for they would often come into my House, and plunder me too, till at last I was obliged to shoot them, and did kill a great many; at length they left me with this Attendance, and in this plentiful Manner I lived; neither could I be said to want any thing but Society, and of that in some time after this, I was like to have too much.

这两只猫已不是我最初从破船上带下来的了，那两只早就死了，我亲自把它们葬在我的住所附近。不过其中一只不知同什么动物交配，生下了许多小猫。这两只就是我从那些小猫中留下来驯养起来的，其余的都跑到树林里成了野猫。那些野猫后来给我添了不少麻烦，因为它们经常跑到我家里来劫掠我的东西。最后我不得不开枪杀了它们一大批，终于把它们赶走了。所以，我现在有那么多仆人侍候我，生活也过得很富裕，唯一缺乏的就是没有人可以交往而已，其它什么都不缺。但不久之后，我就有人交往了，后来甚至感到交往的人太多了。

Secondly, the invertible assignment problem are studied. At last, we explored the conditions on the invertible completion of part matrix Mx and obtained the characterizations of the relovent operator of invertible completion.

利用构造分块初等矩阵、算子广义逆、极分解、谱分解为工具，深入地研究了算子对的逆补Mxy、算子逆配置的一系列等价刻画及一般性结论、缺项算子矩阵存在逆补Mx的等价刻画，并获得了逆补的预解集的性质刻画。

Leaf blade abaxially with tufts of hairs in vein axils; involucre bracts ca. 5 × 3 mm; hypanthium ca.

叶片背面具1束毛在脉腋；大约5×3毫米的总苞苞；大约6毫米的托杯；花瓣顶部全缘的微缺的或很少。

Are children in China at risk of iodine deficiency?

中国的小孩存在缺碘的危险吗？

My doctor has found that most people are deficient in iodine.

我的医生发现，大部分都缺碘。

I now realize that the cause in some cases was probably iodine deficiency.

现在我明白这些人生病的原因可能是缺碘。

About 400 million women of childbearing age are iron deficient, which means their babies are exposed to various birth defects.

大约有4亿的育龄妇女体内缺铁，也就是说，她们的婴儿将可能有各种天生的缺陷。

About 400 million women of childbearing age are iron deficient, which mea their babies are exposed to various birth defects.

大约有4亿的育龄妇女体内缺铁，也就是说，她们的婴儿将可能有各种天生的缺陷。

In fact, such blue sclera, iron deficiency anemia is the early signal.

其实，这种巩膜发蓝，是缺铁性贫血的早期信号。

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。