"After the coil is put on uncoiler, the uncoiler starts, putting the leading end of the coil into the flatterner, which clamp the strip. "
当原料卷完成上卷后,开卷机启动,将带头引至直头机,夹紧带钢。
off-set die head
直角机头(压出机)
the ratio of the focal length to the diameter of a (camera) lens system.
相机镜头直径焦距比。
to point the camera straight up.
将摄影机镜头朝上直立
planes and helicopters flying overhead,
从头顶飞过的飞机和直升机，
When the vertical climb stops, the helicopter is rotated180 degrees about the yaw axis.
先保持水平直线飞行，当直升机通过操控者后，开始平滑地拉高机头（升舵）使机头朝上垂直爬升。
There was a helicopter hovering overhead.
有一架直升飞机在头顶上盘旋.
The camera lens must be screened from direct sunlight.
照相机的镜头不可受到阳光的直射.
China's departments under CCP decide to take the lead in living an austere life
中国中直机关决定带头过紧日子
NPSM (AmericanStandardStraightPipeThreadfor Me-chanical Joints)
美国标准机械接头直管螺纹
The camera lens must be screened from direct sunlight
照相机的镜头不可受到阳光的直射。
Calculation of Mechanical Parameters of 5-roll Peeling on Aluminum Strip Finishing Line
铝带精整机组五辊直头力能参数计算
Discussion on Revamping of The Large Diameter Piercing Head of 10MN Vertical Piercing Mill
10MN立式穿(扩)孔机大直径扩孔头的改造
The helicopter is allowed to fall the same distance that it climbed at the beginning of the maneuver before pulling the helicopter back to straight and level flight.
待直升机垂直俯冲的距离与垂直爬升的距离相同时，拉起机头恢复成水平直线飞行。
Use a hood to screen the lens of your camera from direct sunlight.
在相机镜头上加个罩，使其免受阳光的直接照射。
Use a hood to shade the lens of your camera from direct sunlight.
在相机镜头上加个罩使其免受直接的阳光照射。
You should screen the lens of your camera from direct sunlight.
你应该使照相机的镜头不直接照射到阳光。
Obstacle Performance Analysis of Head of Mine Rescue Robot
煤矿救援机器人头部垂直越障性能研究