Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials. The independent of interest is of positive significance to show the active role of the fund users in the reproduction process. The plan, which is applied to the organization as a whole, is called a strategic plan for the organization to set up overall goals and to seek the organization's place in the environment. The plan for the details of how the overall goal is implemented is called the job plan. The strategic plan and the job plan are different in terms of time frame, in terms of scope and whether they include a set of organizational goals that are known. Strategic planning tends to include persistent intervals of time, usually five years or more, covering a wide range of areas and does not specify specific details. Furthermore, an important task of the strategic plan is to set goals; The job plan assumes that the goal already exists, but only provides a way to achieve the goal. 3. The inseparability of shares, that is, shares are the most basic unit of the company's capital, and each share must not be divided; Value theory of the many contradictions and arguments, essentially derives from the different definitions of value, originated in the people for the different understanding of the concept of value, value, from the perspective of physics can put the theory of value based on the foundation of natural science, with a high degree of accuracy, objectivity and rationality, so that the value theory of widespread vagueness, subjectivity and ambiguity naturally are addressed. As social things all the movement and the change of value relation is in essence the motion and change, so the value theory is the foundation of social science theory, if the value theory is built on the basis of natural science, can greatly promote the fusion and unity of the social science and natural science, but also make the social science become subservient to the natural sciences. 6. The gasoline tubing in the engine room ruptured