plastron

基本解释

Tortoises seem to preferentially put the available calcium in the plastron.
龟们似乎更喜欢把可用的钙质添加到他们的胸甲中。
scottpenny.spaces.live.com
A plastron belongs to an adornment worn on female clothes, with the function of decorating and covering the breast.
一种胸饰，属用作佩带在女性服装上起修饰和胸部遮掩作用的饰物。
ip.com
We discovered that the turtle remains consisted only of parts of the carapace and plastron (the shell and underbelly).
我们发现那具海龟尸体只剩下了部分背甲和腹甲。

An odd way of kicking the tires, perhaps--unlike that of any of the seven previous potential buyers who visited privately held Plastron Industries, the maker of "bobbins, " thermoplastic parts for wound electronic components such as coils.
FORBES: The Race To Embrace
For four months Swartwout and two other executives learned all they could about Plastron, reviewing reams of financial documents, meeting with its largest customers, talking to plant workers, hiring an environmental consultant to evaluate the site.
FORBES: The Race To Embrace