It is not carried out under the gusset .

不得在角撑件下进行。

Nylon briefs with a cotton gusset .

缝有棉布衬料的尼龙三角裤。

The national transportation safety board 's investigation is months from completion , and officials in washington said they were still working to confirm the design flaw in the so-called gusset plates and what , if any , role they had in the collapse .

联邦交通安全委员会的调查报告一个月才能成型，华盛顿官员说他们还在准备之中，确认在称为角撑盘的设计缺陷，在这次塌陷中它是如何起作用，如果这种作用是有的话。