在水上

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)。

Typical accident-causing" theories includes Heinrich" s Domino" s theory, its development by Bird, Adams and other people, progress of which is that it is deficiencies of management system that are the root cause in accident causation sequence. This is author" s idea resource and main method to produce the water traffic accident-causing theory . in addition, uncontrolled transferring of energy theory, applies widely in safety management scheme for water traffic; human error accident model can be used to analyze causes of collision accident and to take preventive measures; perturbation theory and multilinear event sequencing method is a very useful investigation method to water traffic accidents. All of these theories have contributed to the development of water traffic accident-causing theory. As to orbit intersecting theory, the paper thinks it extension of Domino s theory, although it exists independently.

有代表性的事故致因理论有海因里希因果连锁理论以及博德、亚当斯等人对该理论的发展，这些发展的主要进步是突出了管理缺陷是事故因果连锁中的基本原因，是本文分析和发展水上交通事故致因理论的主要思想来源和方法论；能量意外转移理论，广泛的应用在水上交通安全的各项具体管理制度中；人失误事故模型能用于指导对碰撞事故的原因分析和预防；动态变化理论及多线性事件连锁论对指导事故调查是较好的分析方法；轨迹交叉理论虽然以独立的理论形式存在，但本文认为其实质仍然是因果连锁理论的发展。

In areas where ship building and repair are concentrated, oil fenders should be erected to prevent oil and paint spilth on the water from spreading and the oil and paint spilth should be collected in time.

第三十五条在水上进行船舶修造作业的集中区域，应设置围油栏，防止散落水上的油类和油漆扩散，并应及时清理。

Rowing is a water sport in which a boat is propelled through the water by means of oars.

赛艇是用桨作为推动力使船在水上前进的水上运动项目。

With i iration from nature and some help from research at the Ma achusetts I titute of Technology （news - web sites）, a team led by Carnegie Mellon engineering profe or Metin Sitti built a tiny robot that can walk on water, much like the i ects known as water skimmers or Jesus bugs.

受大自然灵感的启发和在美国马萨诸塞理工学院研究人员帮助下，美国Carnegie Mellon大学工程学教授Metin Sitti领导的团队，试制成功了世界上第一台能在水上行走的微型机器人，它犹如水上蜻蜓类的昆虫动物。

To the dynamical stability above the water, we calculated the high inclination stability to insure the collectivity escaping chamber not to keel over.

计算模型在水上的大倾角稳性，以证明它在水上不会发生倾覆，并满足舒适性的要求。

The green basilisk lizard is also called a plumed or double-crested basilisk; but its amazing ability to run on water gives this species its most recognizable moniker: the Jesus Christ lizard.

水上蜥蜴也被称为羽毛或双冠蜥蜴；但它神气的在水上奔跑的能力给了这种蜥蜴一个最易识别的绰号：耶稣蜥蜴

Sitti's prototype is especially impressive considering researchers didn't know how water skimmers walked on water until last year.

去年研究人员还不知道水上行走机器人如何在水上行走，Sitti的样机特别给他们深刻印象。

Sitti's prototype is e ecially impre ive co idering researchers didn't know how water skimmers walked on water until last year.

去年研究人员还不知道水上行走机器人如何在水上行走，Sitti的样机特别给他们深刻印象。

Living on the water, 14-year-old Moeun Sambor cooks a fish dinner for her family in the floating village of Chong Kneas on Tonle Sap.

在洞里萨湖上的水上村，14岁的Moeun Sambor在烧鱼作为家人的晚餐，他们一直都生活在水上。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。