The calculation of the scattering field from the buried targets, which is insonified by the acoustic wave with low grazing angle, is very important for designing a detection system.
小掠射角声波照射下的掩埋物体散射声场计算,对水声探测系统的设计十分重要。
An experiment was made on artificial medium rearing Megalopa of the blue swimming crab(Portunus trituberculatus )in net cages with total area of 20 m2, set in the prawn ponds with total area of 40 mu.
在４０亩虾池内设置网箱２０ｍ２，以鲜活鱼虾蟹蛤肉糜为饵料，以棕帘、鲜活海草、芦苇、麦秆为附着掩体，对人工培育的三疣梭子蟹前期大眼幼体进行中间培育试验。
The Capability of Anti-jamming for Subliminal Channel Using Images as Cover-media;
以图像为掩护媒体的阈下信道抗干扰性
The result shows that the PE file can be a cover-media.
论文从一个全新的角度来研究信息隐藏技术,首次将PE文件作为掩护媒体引入信息隐藏领域。
The troops dug in for the night.
军队整晚都在挖掩体。
This is characteristic of those four bunkers.
这是那四个掩体的特点。
an ecological shelter along the Yangtze River Valley
长江流域的生态掩体
hard missile base
混凝土掩体导弹基地
The tanks moved in to flush the snipers from their nests.
为了赶走掩体内的阻击手，坦克向掩体开去。
On the left is a close-up of one of the four chemical bunkers.
左边的这幅图像是这四个掩体中的其中一个掩体的特写。
You can't see the sky from a shelter.
你知道在掩体里是看不到天空的。
watched the missile launch from a bunker.
看见导弹从一个掩体发射出来
The paratroopers quickly dug themselves in.
伞兵们迅速挖好掩体隐蔽起来：。
Infantry AI has been tweaked so they actually stay in cover.
当步兵在掩体地形中时的AI被增强了。
The troops were ordered to dig (themselves) in.
部队奉命挖掩体构筑工事。
That was when the real ugliest moved in and the TV said we were all to get to the shelters. We knew what they meant--the old atom bomb shelters that nobody thought we'd ever need.
电视中宣称将我们大批人都赶到了掩体里——不用说，没有人会想到还会用这种老式的防核弹掩体。
A lunar occultation of a quasar.
类星体的月星掩测定
Object Substitution Masking:Progress in Visual Backward Masking
客体替代掩蔽:视觉后向掩蔽研究的新进展
The obscuring of a celestial body by another or by the shadow of another.
掩始一个天体被另一个天体或另一个天体的阴影遮掩
overthrust nappe
【地质】逆冲体, 逆掩断层推覆体
cover up with white-out, as of a typo.
印刷工用不透明的物体掩盖。
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。