NASA has worked closely with the companies in the design, development and testing to ensure the systems meet the agency's safety and performance requirements.

美国宇航局已与多个公司进行了紧密合作，涉及设计、研发、测试，目的是为了确保所有系统都能满足美国宇航局对安全和性能的要求。

For those worried about earthquakes, seismic testing is often a key part of the design development phase, and because  of the strength, stiffness, flexibility and low weight of mass timber, it can often be  a better choice than traditional alternatives.

对于那些担心地震的人来说， 抗震测试通常是设计开发阶段的关键部分，而且由于大块木材的强度、刚度、柔韧性和低重量， 它通常是比传统替代品更好的选择。