Studies of the sound radiation and vibration of the ring stiffened cylindrical shell under the circumferential excitation are important to predict the noise of the underwater naval craft.
周向激励下加筋圆柱壳体振动和声辐射特性的研究是预测水下航行器壳体噪声的关键环节。
The Allies assembled a gargantuan naval Armada, from battleships and destroyers to landing craft and coasters.
同时盟军集结了大批的海军舰艇，从战列舰、驱逐舰到登陆艇、小船。
In the months following, we extended testing to naval helicopters and, using an algae-based biofuel, to riverine combat craft.
在接下来的几个月里，我们将此类试验扩展到海军的直升机，并在河岸特战艇(riverinecombat craft)上使用以藻类为主的生物混合燃料。
T-Craft is one of several naval prototypes being developed by ONR to support the broad objectives of the U.S. Navy's Sea Base program.
t - Craft是ONR为支持美国海军海洋基地计划主要目标而开发的几种船舶原型之一。
Textron Marine & Land Systems (TM&LS), has been selected for a Phase II contract by the Office of Naval Research (ONR) to continue development of the Sea Base Connector, Transformable Craft (T-Craft).
美国达信公司海上和陆地系统分部(TM&LS)日前被美国海军研究办公室(ONR)选中，进行海洋基地连接器--可变形舰船(T-Craft)的开发。
Textron Marine & Land Systems (TM&LS), has been selected for a Phase II contract by the Office of Naval Research (ONR) to continue development of the Sea Base Connector, Transformable Craft (T-Craft).
美国达信公司海上和陆地系统分部(TM&LS)日前被美国海军研究办公室(ONR)选中，进行海洋基地连接器--可变形舰船(T-Craft)的开发。
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