The width of light fender, original location of solder and gap distance of photo electric switch have the influence on the system error.
理论分析了气轨测加速度实验中挡光板的宽度、滑块的初始位置及光电门的间距对系统误差的影响，探讨了在确定实验设备条件下提高实验精度的方
Actually, the mask and openings are not really necessary; the mirror alone could serve as aperture.
其实，挡光板及其上的开孔都是不必要的；单单反射镜本身就可以起小孔的作用。
A fixed or movable shield against glare attached above the windshield of an automotive vehicle.
遮阳板汽车挡风玻璃上一块用以挡强烈阳光的固定不动的挡板
a sun shield often of green mica affixed above the windshield of an automobile.
固定在挡风玻璃上端的、通常由绿云母做的遮光板。
The Studies of Electrical Characteristic and OH Radicals Emission Spectrum in DBD of Needle-plate Electrodes at Atmospheric Pressure;
大气压下针—板式介质阻挡放电电学特性及OH自由基发射光谱研究
Let's spread some newspapers on the floor to catch the dust.
我们在地板上铺些报纸来挡挡土吧。
Lean the board against the wall, it is in the way.
把板子靠在墙上，它挡道。
Remove the fender lower screws.
拆下挡泥板下螺丝。
buffled washpipe
带阻尼挡板的冲洗管
tail gate spreader
尾部挡板式石屑撒布器
The wheel' s rubbing on the mudguard.
车轮蹭着了挡泥板.
Armour - plate can fend back bullets.
装甲钢板可以挡住子弹。
a car with its fenders caved in
一辆撞毁了挡板的汽车。
Lower the tail-board and start loading up.
把后挡板放下，开始装货！
The windows were shuttered.
窗户安上百叶挡板。
UV Blocking copper-clad laminates
紫外线阻挡型覆铜箔板
hiding his work with his left hand.
用左手挡住写字板，
a nick on the fender of a car
在汽车挡泥板上的裂痕
The view is hidden by the billboard.
广告板把视线挡住了。