directional

方向的英释中释adjrelating to the direction in which something is pointing or moving

1 directional drilling,定向钻进；定向钻井；定向钻孔

2 directional solidification,定向凝固

3 directional valve,方向阀；定向阀

4 directional control,定向控制

5 solenoid directional valve,电磁换向阀

6 directional coupler,定向耦合器

7 directional derivative,方向导数

8 directional antenna,定向天线

9 directional control valve,n. 定向控制阀

10 directional distribution,方向分布

11 directional light,平行光；定向光源；方位灯

12 directional filter,方向滤波器；分带网络

13 directional stability,方向稳定性；航向保持性；航向稳定性

14 directional property,定向性；方向性

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。