在印制电路板的典型装配中，占总价格不到3%的元件可能会占据电路板上40%的空间。
In a typical printed circuit board (PCB), accounting for less than 3% of the total price of the components may account for 40% of board space.
各种各样的装置都需要进行通断性检查，包括电缆成套件、印制板和连接器，以确保这些元件具有预期的连续通路。
Continuity checks are typically performed on a variety of devices, including cable assemblies, printed circuit boards, and connectors, to ensure these components have a continuous path where desired.
同时，为了达到微型化的设计目标，选用了低功耗的表贴元件、双层印制板制作电路板。
At the same time, For the purpose of the micromation, low-power surface mounting components and double deck printed circuit board are employed.
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