size and shape controlling 大小和形状可控
The function of surfactants in controlling particle size and shape of nano materials, and the influences of species, structures and concentration on them were introduced in this paper.
简要介绍了表面活性剂在纳米材料形貌控制中的作用，以及表面活性剂的种类、结构、 浓度等因素对纳米材料形貌的影响。
There are more than 200 genes controlling and adjusting teeth development. They decide tooth position, number, size and shape, etc.
在牙齿的发育形成过程中有多达200多个基因参与调控，它们决定各个牙齿的位置、数目、大小和形状等。
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