experimentern.实验者；实验人员experimentn.试验；实验；尝试vi.尝试；做实验experiment preparation实验预习experiment curriculums实验课程experimentation-wave实验波形experiment of teaching实验教学Experiment site school试点学校experiment mode choice实验模式选择experiment on soapfilm肥皂膜实验experiments supporting配套实验experimenting teaching课程实训experiment of weighing称重试验