base map

基本解释

A value-base map may provide some useful description, but the principle-centered compass provides invaluable vision and direction.
有價值的地圖可提供有用的信息，但是嚴謹的羅磐卻爲我們提供非常重要的指南和方曏。
With your selected pixel coordinates and a single-layer base reflectivity map, the logical process for detecting precipitation near a spot on the map is straightforward.
使用選定的像素坐標和單層基本反射率圖，檢測地圖中某個場所附近的降水的邏輯過程將十分簡單。
[ZHANGZheng-fu. Study on the method of updating county-level land use base-map using remote sensing technology[J]. Remote Sensing Technologyand Application, 2002,17(6):381~384. ].
[16]張正福。應用遙感技術輔助更新縣級土地利用基礎圖件的方法研究[J]。遙感技術與應用，2002，17（6）：381~384。

The iQue M5 shows major highways, thoroughfares, railways, lakes, rivers and borders within its built-in base map of North and South America and Puerto Rico.
MSN: Supercharged PDA with GPS really flies
The genome project, which the government began in 1987, aimed to speed the gene-hunting effort by providing the first full map of all 3 billion base pairs that make up human DNA. (It was not necessary, in this effort, to run through all the pairs on each set of chromosomes, or 6 billion pairs.) And because the base pairs come in only four varieties, they are digital and ideal for computer decoding.
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