水面

Their lenses are perfectly spherical, which enables them to see underwater because it has a higher refractive index to help them focus.

他们的透镜是完全球状的，使他们看在水面下因为它有一个更高的折射率帮助他们聚焦。

This is an era of frequent disasters, but also a heroic age of 11 surface.

这是一个灾难频发的时代，也是一个英雄一一浮出水面的时代。

They didn't seem to be on or near Hie surface, either.

它们并不是在水面上或者附近。

The velocity potential is expanded about the still water level with the coefficients being the functions of horizontal coordinates.

将速度势沿静水面位置展开，其系数是水平位置的函数。

This horse-drawn carriage can be used for another reader who comes out of the submarine.

此马车可被另一个浮出水面的读者所搭乘。

The Huntley surfaced, signalled her success, and was never heard from again.

亨特利号浮上水面，发出成功信号，但从此再无音信。

Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.

本文以流域生态环境需水为主要研究对象，因此重点阐述了流域生态环境需水量的分类和计算方法；②通过分析流域生态系统构成与流域生态环境功能，并分时段和河段考虑，确定了桃花江流域生态环境需水量的组成，即包括维持现状河道生态环境功能现状的现状生态环境需水量与流域生态环境改善的生态环境需水量，前者包括河道内生态环境需水量(维持河道基本生态功能需水量、维持河道自净稀释功能需水量、补充地下水水量及美化流域景观娱乐需水)与河道外生态环境需水量(流域内植被、森林、农田的需水量和与河道相连的池塘、水库等的需水量)；后者还包括为治理改善流域生态环境而拟规划林业生态建设所需水量；③对桃花江流域的自然地理、水文地质和社会经济特征以及水资源现状及其主要生态环境问题进行了综合分析，提出了适合桃花江流域的生态环境需水量计算方法，即采用Tennant法计算河道内生态环境需水量，采用林地最小生态环境需水量法计算林地生态环境需水量，采用需水定额法计算农田生态环境需水量，采用水面蒸发法计算水库、池塘生态环境需水量。

Sea water hydrometer Floating on the sea water, the hydrometer is transparent, and is easy to use and reads easily with accurate numbers.

海水比重计浮于水面的海水比重计，海水比重、盐度、显示精确，使用简单，读数容易，透明度高。

To rise partly out of the water, as a hydroplane does at high speeds.

滑行：当水上飞机以高速度滑行时，机身一部分抬出水面

Other ships can actually lift themselves up onto skids and hydroplane across the water. This has the opposite effect (making them a bigger target for other ships), but allows them to move many times faster than a conventional navy.

其他的船可以让自己悬空越过水面，像是水上滑翔机，但是可以比其他的海军船只移动的更快。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。