We may assume that the meanings of these underwater sounds correspond closely to these with which we are familiar on land . 我们可以假定水下声音和陆地上我们熟悉的声音含意相似。
The sparker was originally developed for fundamental studies of underwater sound propagation and of subbottom geology . 火花发生器原来是为了进行关于水下声波传播及海底地质的基础性研究而制造的。
"tidal waves" from under water blasting can sometimes cause problems for adjacent installations such as sluice gates . 水下爆破产生的“浪涌”，有时可能对邻近的，诸如水闸门之类的设施造成问题。
The salinity and temperature of the water from submarine springs are indicators, which can be used for a detailed location of the spring mouth . 从水下泉出来的水的含盐度和温度可以作为泉口准确位置的指示。
If it is necessary to have the joints under water, they must be bedded into a box or sleeve which absolutely prevents water from penetrating in . 如果有必要在水下接头，就必须把它们安置于绝对不渗水的密封盒子或套管中。
What about structures that are partly under water 部分结构在水下的建筑怎么说？
The dredging technique for rapid stream of lanchang river 澜沧江急流水下疏浚技术
Detection of underwater target echo based on gram 正交化算法的水下目标回波检测
Terminology for submersibles and underwater installations 潜水器与水下装置术语
Repair technique of underwater cracks of concrete dam 混凝土大坝水下裂缝修补技术
