求翻译：然而，机械手的出现，也给热喷涂的操作人员带来了挑战，机械手的编程不但需要学习和熟练，遇到一个较为复杂的零件，编程工作往往费时费力。是什么意思？

However, the emergence of the robot, but also to the thermal spray operator challenges, robot programming and need to learn not only skilled, experienced a more complex parts, work is often time-consuming programming.

However, handlers, are also addressed to thermal spray operator has brought challenges, robot programming requires not only learning and skilled, experienced one of the more complex components, programming work is often time-consuming and laborious.

However, manipulator's appearance, also gives the hot spraying not only the operator brought the challenge, manipulator's programming has needed to study and skilled, met more complex components, the programming work is often time-consuming takes the trouble.

However, the emergence of manipulator, also brought challenges to the operators of thermal spraying, robot programming not only need to learn and skilled, find a more complex part, programming is often time consuming.

However, the emergence of the robot, but also to the thermal spray operator challenges, robot programming and need to learn not only skilled, experienced a more complex parts, work is often time-consuming programming.