The default test step type is Execution step.
默认的测试步骤种类是Execution Step。
This paper derived the single mode condition for step type optical fiber.
文中导出了保证阶跃型光纤的单模特性条件。
Note that the launch page must match the launch type, and the step page must match the step type.
注意,启动页面必须与启动类型匹配,步骤页面必须与步骤类型匹配。
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