contraction process的用法和样例：
例句
- Each of the troponin complexes appears to determine the ability of seven actin monomers to participate in the contractile process.
每个肌钙蛋白复合物决定着七个肌动蛋白单体参加收缩过程的能力。 - As contraction continues and the density increases, the dust becomes so thick at the center of the cloud that it absorbs the far-infrared radiation.
当收缩过程继续进行下去，密度不断增大时，气尘云中心的尘埃就会变得极其浓密，因而能够吸收远红外辐射。
