舰长和海军上尉急忙冲到甲板梯口。

The captain and his lieutenant rushed to the companionway.

youdao

客人到店的迎接礼仪1。梯口迎宾 客人由行李员引领来到楼层，服务员应面带笑容，热情招呼。

Second, greeted guests to shop etiquette 1. Stairs Yingbin Guests from the floor to lead the luggage, attendants should be smiling, and warmly entertain.

youdao

在此基础上，选择一组口面参数设计了一梯形进口的平面埋入式进气道方案，并进行了高速风洞试验验证。

Then by selecting a group of suitable entrance parameters, a submerged inlet with the trapezoid entrance on the plane surface is designed and verified by wind tunnel tests.

youdao

在此基础上，选择一组口面参数设计了一梯形进口的平面埋入式进气道方案，并进行了高速风洞试验验证。

Then by selecting a group of suitable entrance parameters, a submerged inlet with the trapezoid entrance on the plane surface is designed and verified by wind tunnel tests.

youdao