natural elevation

The desk board can adjusts the angles, the lumber and cervical restore the natural state, the head of natural elevation, and assist the working and recline body to reading.

桌板可调整角度，使腰颈椎自然挺直，头部自然抬高，协助伏案或后仰身躯进行读写。

The tolerance of zooplankton is stronger than that of phytoplankton, which is different among species. Temperature elevation in receiving sea area generally has no impact on the survival of zooplankton because of the large span between semi-lethal temperature ( LT50) and natural living temperature.

浮游动物的耐热性强于浮游植物，并存在种间差异，由于半致死温度（LT50）与自然适应水温的跨度较大，温排水造成的海域温升基本不影响受纳海域的浮游动物存活。

During the construction process, balanced adjustment of the earthwork is made according to the natural elevation of the construction field and quality control of the key parts of the structure is also made using advanced new technology and techniques in view of the structural characteristics.

在施工过程中，根据施工现场场地自然标高，对土方均衡调整，并依据结构特征，采用先进的新技术及新工艺对结构的关键部位进行质量控制。

The distribution of orchids are related to such natural factors as elevation, landscape, climate, soil and flora itself.

兰花的生长分布与地形、气候、土壤和植物等生境因子关系密切。

A natural elevation of the earth's surface having considerable mass, generally steep sides, and a height greater than that of a hill.

山自然形成的高出于地面的一块高地，占地广大，通常外侧陡峻且比丘陵要高。