研究人员汇集了2005，2007以及2009三年共149个属于初级、常任轨（ tenure-track，通常在聘用为教授时约定了5年左右的评估期，期满评估合格便转为终身教职的聘用形式——译者注）聘用形式的样本。
The researchers compiled a sample of 149 entry-level, tenure-track hires made during 2005, 2007 and 2009.
其中大部分不言自明：针对乘客和机组的强制训练及医疗评估；须向乘客充分告知风险；预飞训练合格等。
Most of them are obvious: mandatory training and medical evaluations for passengers and crew, full disclosure of all risk to passengers, and successful preflight testing.
剩余款，馽评估报告形成经验实绩成果合格后，一次性付款。
The excess funds, after the assessment report forms the experience actual accomplishments achievement qualified, disposable payment.
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