straight jet

The boundary of a wall jet can be approximately regarded as a straight line and the angle of spread is 7.67 degrees;

有限空间附壁射流边界近似为直线，射流扩散角约为7.67°；

They are showy, flamboyant and exquisitely choreographed, mainly built around the use of the Chinese straight-but-flexible sword, which hums and sings as it sizzles through the air at jet speed.

它们丰姿万千，色彩缤纷，编排精巧细致并且主要围绕笔直而变化多端的剑的使用来进行。

The businessmen who pour in on the thrice-weekly jumbo jet from Johannesburg drive out of the airport car park straight into a slum.

来自约翰内斯堡的商人乘坐一周三班的大型喷气式飞机涌入罗安达，驾车离开机场就进入贫民区。

A : The Harrier jet can fly straight up into the air.

猎鹰式喷射机可以垂直升空.

He did not have the heavy, Cupid-shaped face of the other children, and his jet black hair was straight rather than curly.

他没有他的兄弟所有的那种大大的丘比特式的脸庞，他那乌黑的头发是直的，而不是卷曲的。