directional accuracy 中文意思是什麼
directional accuracy
解釋
方向性精度- directional : adj. 1. 方向的。2. 【無線電】指向的，定向的。
- accuracy : n. 正確，準確（度）；精確。 firing accuracy 命中率。 with accuracy 正確地。
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This paper introduces a static state directional accuracy of gun measuring technique, on this basement, we has used laser photo - electricity theodolite, and has designed the big gun ' s measuring accessory
本文首先對坦克炮管靜態定向精度的測量方法進行了較全面地介紹和比較，在此基礎上，選用了激光光電經緯儀，設計了炮管上的測量附件。 -
The above spatial and temporal discretization in the boundary, and two - directional average in the intersection, can satisfy completely n - s equations, and have high accuracy in the all computational regions
對邊界上的空間微分採用高階緊致差分格式離散，時間微分採用四階時間推進處理，在交界處採用雙向差分平均法，保證了整個計算域上的流動都滿足navier - stokes方程，並具有高階精度。 -
The laser beam treated as a linear reference is used widely in the manufacture and measurement equipments, due to its many advantages, such as high brightness, good directivity, and good coherence etc. but the further improvement of the laser directional stability accuracy is restricted by some factors, such as the environment etc, which restrain the application greatly in the ultra - precision manufacture and measurement equipments
激光光束由於其亮度高、方向性好、相干性好等優點，常被作為直線基準廣泛應用於加工和測量設備中。但由於受環境狀態等因素的影響，制約了激光方向穩定精度的進一步提高，限制了激光在超精密加工和測量設備中的進一步應用。 -
Trenchless technology given rised to the 20 centuries in abroad 70 ' s empress period, as an new construction technique in paving underground tube line. directional drilling come into being the most potential method because it achieve accuracy designed - area on trenchless technology, so it bring great benefit, especially in complexity pipe line area of city
非開挖鋪設地下管線施工技術（簡稱非開挖鋪管技術）是國外二十世紀七十年代後期發展起來的一項管道施工新技術，定向鉆進非開挖鋪管技術因其高精度的定位能力而成為非開挖四大工法之中最具潛力的技術，在城市管網極為復雜的地區，是其它施工方法難以代替的，社會經濟效益尤為突出。
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