Not all of the photons will reach the focus of the telescope because of reflection and absorption losses from the components in the optical train . 由于光学系统部件所引起的反射和吸收的损失，不是所有的光子都能到达望远镜的焦点。
High-speed information transfer between a floppy disk and data memory frequently occurs directly between these two devices, by passing the cpu . 在软磁盘与数据存储器之间的高速信息传输，常常是跨过中央处理机直接在这两个部件之间进行的。
Epoxies have good casting properties and the parts may readily be cemented together at room temperature, allowing the fabrication of complicated models . 环氧树指的浇铸性能良好；由此种材料制成的部件，在室温下很易于粘合，可用来制造形状复杂的模型。
Any component part other than the original inner tank 除了内胆以外的任何部件。
The parts and units of jigs and fixtures . hinger shaft 机床夹具零件及部件.铰链轴
Do not start ripping components out or swapping parts 先别开始拆组件或换部件。
A widget can span several cells in the grid 窗口小部件可以跨网格中的几个单元。
The parts and units of jigs and fixtures . handle nut 机床夹具零件及部件.手柄螺母
Control to coordinate all web parts controls 控件来跟踪和协调所有web部件控件。
