这个显微镜的底座需要更换一个新的金属基板。

The microscope's stand needs a new metal ___baseplate.

工程师们仔细检查了地基板，确保它足够坚固以支撑整座建筑。

The engineers carefully inspected the ___baseplate to ensure it was strong enough to support the entire structure.

技工在基托上摆放假牙，为患者试戴做准备。

The technician arranged the artificial teeth on the ___baseplate for the patient's fitting.