Cells can also develop mutations in the thrombopoietin receptor, MPL, or in the chaperone protein, Calreticulin or CalR.

细胞内的促血小板生成素受体（MPL）或伴侣蛋白/钙网蛋白（CalR）也可以发生突变。

Engineers at Johns Hopkins’ Applied Physics Laboratory have been developing a device called a Modular Prosthetic Limb, or MPL, which is an incredibly functional robotic arm.

约翰霍普金斯大学应用物理实验室的工程师一直在开发一种假肢或 MPL 的设备，这是一种功能强大的机械臂。

In 2014, this surgery allowed a patient, who lost both arms as a teenager, to wear and control two MPLs and perform basic tasks by just thinking about them.

2014 年，这项手术让一位在十几岁时失去双臂的患者佩戴并控制了两个 MPL，只需用意念即可完成基本任务。

So, even though the patient didn’t need a prosthetic arm, researchers working on the MPL were able to use the information from his sensors to program their device.

因此， 即使患者不需要假肢，研究 MPL 的研究人员也能够使用来自他的传感器的信息来对他们的设备进行编程。