查询词典 datum point

Average velocity: The distance traversed by a seismic wavelet divided by the time required, both often corrected to a reference datum plane.

平均速度：一个地震子波传播距离与所需时间的比值，其中距离和时间通常都被校正到一个参考基准面上。

Palaeogeomorphology is a main factor to control the development and distributing of the sedimentary facies like the geomorphology today which is affected by the factors such as the location of the area tectonics, weather, the change of the datum plane and the tectonics movements.

古地形地貌是控制一个盆地后期沉积相发育与分布的一个主要因素，同现在地貌一样，古地貌形态受到了所处的区域构造位置、气候、基准面变化及构造运动等因素综合作用的影响。

I didn't have enough datum at hand.

目前我的手头没有足够的资料。

I have not enough datum right now.

目前我手头没有足够的资料。

At this moment, it's important to set up a complete and complex datum index.

目前，重要的是为中国市场制订综合全面的基准指数。

5 The map datum used will be …………..

使用的地图基准将是…………。。

I dont have enough datum in my hand now.

目前我手头没有足够的资料。

This is an observation of the world, what a scientist would call "a datum".

这就是对世界的观测，也就是科学家所说的"资料"。

It is always the dryasdust datum and numbers every day.

每天都是枯燥无味的数字和数据。

Beijing Datum Science and Technology Development Co.

北京地拓科技发展有限公司，北京 100081

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。