最后一部分代码要求表单（组合而成）确定所创建部件的位置。
The last bit of code asks the form (composite) to position the widgets you created.
脑波检测电极设置在靠近头靠(枕)或从顶棚吊下的部件的位置。
Brain wave electrodes are arranged near a head rest or at a position that a member is hanged from roof.
为了减少停工时间，最好是准备好阀腔更换件，来安装在需要维修的部件的位置上。
To minimize downtime , it may be advisable to have a replacement valve cartridge ready to install in place of the one to be repaired.
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