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Glasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears. Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness. Safety glasses provide eye protection against flying debris for construction workers or lab technicians; these glasses may have protection for the sides of the eyes as well as in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation. Glasses are worn for eye protection in some sports, such as squash. Glasses wearers may use a strap to prevent the glasses from falling off during movement or sports. Wearers of glasses that are used only part of the time may have the glasses attached to a cord that goes around their neck, to prevent the loss of the glasses.
On October 21, 1879, Edison's electric lighting experiment could be regarded as modern technology research
|Owning a Mercedes Benz {is like|is much like|is similar to|is a lot like} maintaining a trophy wife. You need {the utmost|the most|the maximum|the absolute maximum} care {and to|and also to|also to|and} {spend a fortune|spend lots of cash|spend lots of money} on its upkeep. Most Mercedes owners never {take their|place their|get their} cars to regular auto {repair shop|repair center|mechanic shop}. They {take their|place their|get their} cars to authorized Mercedes repair shops {to solve|to resolve|to fix|to unravel} their automobile problems. The technicians {employed by|utilized by|used by|utilised by} these repair shops use highly sophisticated diagnostic tools {to fix|to repair|to correct|to solve} Mercedes models {that have|which have|who have|which may have} just {hit the market|hit the industry|to enter the market|become so popular-so fast}. If you find {it difficult|it hard|that it is hard|it tough} {to locate|to find|to discover|to get} {an authorized|a certified|an official|a licensed} Mercedez service and {repair shop|repair center|mechanic shop} {you can trust|you can rely on|you can depend on|you can be confident}, {you are not alone|you're not alone|it's not just you|most}. The technicians {at the|in the|on the|with the} {repair shop|repair center|mechanic shop} {specialize in|focus on|concentrate on|are experts in} various repair functions {such as|for example|including|like} performance tuning. Repairing {worn out|worn-out|exhausted|broken down} clutches and drive trains, overhauling of engine transmission, fixing the A/c {of the|from the|with the|in the} car, {everything that|exactly what|precisely what|anything that} {help you|assist you to|enable you to|allow you to} {upgrade your|change your|get some new|buy some new} car?s {overall performance|efficiency|functionality|effectiveness}.
In 1981, car makers started assigning a unique, 17-character code to every vehicle that is built, which is often used for various purposes, but mostly for verifying the legitimacy of vehicles. Governments and police officers agencies apply it to distinguish stolen vehicles, and motorists demand it after they place their cars with a mechanic, also it's useful when purchasing pre-owned car, so that you can manage a vehicle history report. The insurance industry often uses vehicle identification numbers, as well. VINs are generally engraved on aluminum plates, cast or stamped, as being a bar code, or perhaps in label form, and they also is found with a car's steering column, doorjamb, driver's door, passenger side door, dashboard, too as in a vehicle's maintenance book and title.
Continuous traffic:
Through the filter screen, the process of the process is carried out through the outlet, and the particles in the water are trapped inside the filter. So continuously circulation, more and more particles trapped down, filtration speed slower and slower, and imports of sewage is still continue to enter, filter hole will be more and more small, thus produce pressure difference between inlet and outlet, when poor magnanimous to set data, differential pressure transmitter will be routed to the controller, control system startup drive motor through the mechanical drive shaft rotation, open the outlet at the same time, by the discharge outlet, when the screen is clean, differential pressure drop to the minimum, the system returns to the initial filter, normal operation of system
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