A reaction in which an atom, a radical, or a molecule replaces another in a compound.
每个分子仅含有一个可置换的氢原子的酸。

Occupational Exposure During Lead Abatement of Steel Surfaces by Needle Gun Methodology
通过针枪工艺对钢材表面除铅过程的职业辐照

Abaxial surfaces of both leaf blade and hypanthium sparsely villous.
背面两个叶片和托杯疏生长柔毛。

abaxial surfaces convex, crustaceous, narrowly ribbed around margin, sessile.
背面凸，壳质，在边缘，无梗周围的狭窄棱。

Note how it displaces the bowel superiorly and fills the lower abdomen.
注意子宫都达到横结肠得位置, 并填充满下腹部。

Acesodyne effect of autonomic acesodyne pump and nursing after abdominal delivery
自控止痛泵用于剖宫产术后的止痛效果及护理体会

The surfaces of the concave lens may be proportioned so as to aberrate exactly equal to the convex lens.
凹透镜的表面可以进行均匀处理，以便使像差完全与凸透镜一致。

This course places emphasis on developing students' ability to set their own research subject.
这个课程着重发展学生自己确定研究题目的能力。

This suggests the ability to recognize faces is heritable.
这说明面孔辨识能力是可遗传的。

Thus has in Arctic Ocean surfaces the boat breakthrough ice layer ability.
从而具有在北冰洋上浮突破冰层的能力。

He is now able to walk with the help of leg braces.
他现在能借助拐杖走路了。

That she may be able to recognise the faces and know the persons.
让她来认认面孔, 认认人。

He was too far away to be able to identify faces.
他离我们太远, 还看不清他的脸。

An abnormal fear of high places.
恐高症对于高处的一种不正常的恐惧

An abnormal fear of being in narrow or enclosed spaces.
幽闭恐怖症处于狭窄或被包围场所的异常恐惧

But if there is an abnormal activity in the fusiform gyrus, they may hallucinate faces.
而当梭状回异常时 患者则可能看到面容的幻象

An abnormal fear of open or public places.
恐旷症。陌生环境恐怖对公开或公共场合不正常的恐惧

I will keep away from rowdy places. I will not ask about things that are abnormal or unusual.
避免去斗争或胡闹的场所, 绝不过问邪恶或不正常的事情。

Are startups the only places where the ingredients of creativity abound today
创业是唯一的地方富于创造力的成份今天好吗？

The island abounds with places of historic and scenic interest.
普陀山的名胜古迹很多。

Even in places with a Napoleonic code, lawyers abound.
即便是尊奉拿破仑法典的国家也盛产律师。

When their mother was absent, the children kicked over the traces.
当妈妈不在的时候，孩子们一点都不听话。

In Lacanian theory, it is not the word which replaces the absent object.
在拉康的理论中，词并没有代替这个缺位的客体。

Absolute measurement of spherical surfaces and error control
球面绝对检测及误差控制

Subseries convergence and absolute convergence in locally convex spaces
局部凸空间中的子级数收敛与绝对收敛