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1·Unless he was equipped with a directional microphone, he was out of earshot.

除非给他配备一个定向扬声器，否则谁也听不见他。《柯林斯英汉双解大词典》

2·The faint arrows, similar to the directional markings on a tactical map, are one of the rare carry-overs from his military world.

微小的箭头类似于战术地图上的方向标记，是他的军事世界中罕见的遗留物之一。

3·Jets of compressed air gave the aircraft lateral and directional stability.

压缩气体喷流从侧面和正面稳定了机身。《柯林斯英汉双解大词典》

4·This directional drilling has several advantages

这种“定向钻取”的优势如下

5·Bi-directional transformation of DSL models to UML models.

dsl模型到uml模型的双向转换。

6·Bi-directional transformation of AUTOSAR UML and DSL models.

AUTOSAR UML和dsl模型的双向转换。

7·Let's say the same thing in terms of directional derivatives.

我们来用方向导数，来描述一下相同的东西。

8·And that's basically, yes, that's the directional derivative.

基本上是的，那就是方向导数。

9·A directional light doesn't have a position, only a direction.

定向光没有位置，只有方向。

10·Well, it's actually the directional derivative in that direction.

它其实是那个方向的方向导数。

(1)directional drilling定向钻进；定向钻井；定向钻孔

(1)directional solidification定向凝固

(1)directional valve方向阀；定向阀

(1)directional control定向控制

(1)solenoid directional valve电磁换向阀

(1)directional coupler定向耦合器