查询词典 datum level

The local vertical datum was traditionally defined by the local mean sea level at a tide gauge or at a group of tide gauges.

局部高程基准通常由一个验潮站所测的当地平均海面确定。

D. by the same datum plane, which collected from Yulin tidal gauge station located at South Coast of Hainan Island, this paper researches by manifold statistical analyses and reveals that the relative sea level along south Coast of Hainan Island is rising at the rate of 0.64mm/a during the past 40 years.

根据海南岛榆林验潮站 1 95 4～ 1 992年连续 39a潮位观测资料，经过统一基准面校正后，运用多种统计分析方法研究，得出近 40 a来海南岛南岸的相对海平面变化呈上升趋势，相应的平均上升速率为 0 。6 4mm/a。

To enhance digital management of construction scene,improve level of quality control for construction process,and reduce to inject pseudo information into datum of final acceptance,a mobile wireless long distance image monitor and data transimission system is proposed.

为了加强施工现场的数字化管理，提升施工过程质量控制的水平，尽可能减少建设工程竣工资料的&做假&行为，本文提出了研制一种适用于施工现场使用的可移动的无线远程图像监控和数据传输系统。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。