Some parameters, such as the core width, pitch of adjacent waveguides, diffraction order, number of arrayed waveguides, and propagating wavelength are optimized for the purpose of actual design.
并对波导芯尺寸、相邻阵列波导间距、衍射级数、阵列波导数等参量进行了优化，得到了器件实际设计所需要的相应的参数值，从而达到优化器件设计的目的。
To do a squat to biceps curl, you start with your feet about shoulder-width apart, spine straight and your core stable.
在做这个动作时，双脚与肩同宽，背挺直，保持重心稳定。
Before we do anything let me send you a "specification" that includes weight, width, core, roll length, etc.
在我们做任何事之前，让我们把规格，包含重量，宽幅，轴芯，卷长等定下来。
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