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Position: Product safety knowledge
What is traffic safety establishment? - Traffic safety establishment One, what is traffic safety establishment? To uphold traffic order, ensure transportation is safe, develop the function of road transportation adequatel...
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- Line of 1. humane horizontal stroke: Pedestrian crosswalk line is wide solid line of parallel of a group of white (zebra crossing) , in crossing of pilot of traffic signal lamp, use the range of line of pedest...
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- Little knowledge of lamplight of DV photography illume and reflector material It is good like filmed effect to photograph, illume is a crucial factor. Inside this art...
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- At present the lens back of the viewfinder on market has the following kinds of color roughly: Nacarat, flaxen, deep yellow. Is the lens back that chooses which kind of color after all more scientific? Wit...
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- What is traffic sign?
- What is traffic sign? Answer: "Traffic sign " it is to show according to the country the standard passes specific information with graphic symbol and c...
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- Meshy line expresses road surface yellow to prohibit strictly when all car are long or jockey temporarily, prevent traffic block. When yellow meshy line ahead has car to stop when sailing, the car must be in a...
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- What is the function of central yellow double solid line?
- Central yellow double solid line expresses to prohibit strictly car crosses line overtake and change of towards the left. Also express to prohibit strictly car and pedestrian cross. Its action is equivalent to...
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- Line of central yellow false or true states solid line a side prohibits car crosses line overtake and towards the left to turn, dotted line a side allows car is in ensure to line overtake and towards the left...
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