在水下

The average fresh weight was 35.22 g per plant, with the above-water part counted 77% and the under-water part 23%. The waterborne part played a key role in the biomass structure. The directly absorbing contents of N and P were 13.05-33.14 kg/(hm2·a) and ?5.62-6.67 kg/(hm2·a), respectively.

研究成果如下：水芹植株的平均鲜量35.22 g，其中水上部分占77%，水下部分占23%，生物量分布主要集中在水上部分；其对N，P的直接吸收分别可以达到13.05～33.14 kg/(hm2·a)和5.62～6.67 kg/(hm2·a)。

Such oceanic growth can be removed similarly by divers underwater or by normal above-water waterjetting should the ship be drawn onto a dry dock.

可以用高压枪在船坞清除，但如不要将船拖到船坞上清洗，亦可用无后挫力水枪，利用潜水人，进行水下清除。

Above-water remote sensing reflectance and scattering extinction coefficients of water were derived by modeling radiative transfer across the water-air interface with in situ measured water quality data and beneath water spectral reflectance measurements in Lake Tai.

利用太湖水质参数数据、水面以下实测光谱数据以及水-气界面辐射传输模型，计算得到了水体漫射衰减系数和水面以上遥感反射比，探讨了悬浮物对水体中营养盐以及水下光照等水体环境因子的影响，在此基础上，利用水面以上遥感反射率建立了悬浮物浓度的定量反演模型。

Acoustic correlation log is a navigation instrument, which is suitable to be equipped on ships, AUV and submarines. It can provide the carrier's moving information and get accurate cumulative sail in real time.

以此原理制造的声相关计程仪是适合于装备在船舶、自主水下运载器以及潜艇上的一种导航仪器，它能够实时给出载体的运动信息，并能够获得精确的累积航程。

Penguins surface near an air hole in Antarctica, captured with a remote underwater camera.

这张企鹅在南极洲冰面空气孔附近活动的照片是由水下相机遥控拍摄的。

When a scuba diver jumps off a boat, he has a device called anoctopus attached to his air tank.

当一个带着水下呼吸器的潜水员从船上跳入水中时，有一个叫做章鱼的装置接在氧气瓶上。

Article 22 A vessel shall, when washing the cabin, driving air or replacing the cabin, select safe water areas, be far from crowded navigable areas, vessel's routing system areas, navigation-forbidden areas, navigation channels, ferries, harbors for passenger liners, harbors for dangerous goods, military harbors, locks, large bridges, underwater passages and important targets alongshore under protection, and shall, before carrying out the operations, report to the maritime administrative institution for ratification.

第二十二条船舶进行洗舱、驱气或者置换，应当选择安全水域，远离通航密集区、船舶定线制区、禁航区、航道、渡口、客轮码头、危险货物码头、军用码头、船闸、大型桥梁、水下通道以及重要的沿岸保护目标，并在作业之前报海事管理机构核准，核准程序和手续按本规定第十三条关于单航次海上危险货物过驳作业的规定执行。

In this paper, a space model of antisubmarine homing torpedo's trajectory has been established based on the surface warship attacking underwater target, a formula which can be used to calculate the trajectory length of antisubmarine horning torpedo is also given.

在建立了水面舰艇发射反潜自导鱼雷攻击水下目标的空间弹道模型的基础上，提出了反潜自导鱼雷全弹道长度的一种计算公式。

Underwater security is a challenging job for the long-lasting antiterrorism task.

反恐将在相当长的时间内成为一个难以回避的主题，近岸水下反恐则是一项具有挑战意义的工作。

In Fortaleza a small earth tremor of 4.2 is observed and it start to open more the subterranean fissure next to the sea that came from Africa to Brazil

在福特莱萨一次小地震4.2被观察，并且它开始打开更多地下裂痕在来自非洲到巴西的海旁边水下

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐