The catalytic center of an enzyme is composed of a set of amino acids whose three-dimensional arrangement forms the "active-site" that allows them to efficiently bind and modify the substrate.
酶的催化中心是由一组氨基酸组成，其三维结构形成活性位点，允许它高效地结合或修饰底物。
The theoretical calculation result indicates that the three-dimensional tooth arrangement model of PDC Bit's with the parameter method is precise and reliable.
理论计算结果表明，利用这种参数化建模方法完成的PD C钻头三维布齿模型是精确、可靠的。
As a three dimensional arrangement, the Breaker features compact in structure and small in volume.
断路器为立体布置形式，具有结构紧凑、体积小的结构特点。
As a three dimensional arrangement, the Breaker features compact in structure and small in volume.
断路器为立体布置形式，具有结构紧凑、体积小的结构特点。
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