背喷灯箱片 Back light inkjet film
背负式喷雾器 [植保] Knapsack Sprayer ; backpack pump ; sprayers knapsack of irrigations ; kna ack rayer
喷油背压 [动力] injection back pressure ; nozzle flow characteristic
背负式喷粉机 knapsack duster ; knapsack sprayer ; kna ack rayer ; kna ack duster
喷气背包 Jetpack ; jump pack ; Jetpack Joyride
清痘美背喷雾 acne clearing back spray
获得喷气背包 give jetpack
捡到15个喷气背包 pick up 15 jetpacks
背包式喷雾器 knapsack sprayer
PVDC涂层；用于生产喷墨打印片、背喷片。
PVDC sub-coating substrate; Used for producing inkjet printing film and backlit film, etc.
目前哈市商家大多都采用背喷式喷绘灯箱片，其缺点十分明显，第一，他的色彩还原度差，基本是偏色的；
Currently most vendors have adopted in Harbin City-jet inkjet light box piece back, Its shortcomings are obvious, First, he degree of color reproduction is poor, basically color cast;
背压对贯穿距离、喷雾锥角、喷雾轴心速度和浓度衰减率的影响均大于启喷压力。
It shows that the effects of back pressure on penetration, spray cone Angle, and decline rate of centerline velocity and concentration of the spray are greater than that of fuel injection pressure.
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