China National Petroleum Corporation（Petrochina） is the largest oil and gas producer and distributor in China's oil and gas industry, one of the largest companies in China by sales revenue, and one of the largest oil companies in the world.

Gezhouba Converter Station is the first station of Gezhouba-Shanghai DC power transmission project and the first ultra-high voltage DC power transmission and transformation project in China.

The safety management of the hotel is the basic premise and important guarantee of the hotel operation, service and benefit. Eliminate the hidden danger of accidents, solve the possible unsafe problems in the operation, effectively protect the personal health and property safety of guests and staff, and provide a safe operation and service environm

Safety is a social topic, is related to the public topic of the whole people, and campus safety, the social harmony and stability of a huge impact, can be said to involve every family. With the frequent occurrence of various security incidents, campus security has been highly concerned by the whole society.

Shenzhen Bay Sports Center is located in the northeast corner of the central area of Houhai, Nanshan, and in the middle of the 15-kilometer coastal leisure zone of Shenzhen Bay.

Shenzhen Maternal and Child Health Hospital was founded in 1979 and merged with the former Shenzhen Women and Children's Hospital in April 2002. It is a Classⅲ Grade A maternal and child health care hospital integrating maternal and child health care, medical treatment, prevention, scientific research and teaching.

Forest as a renewable natural resources on earth, and the body of the terrestrial ecosystem, and its contribution to human beings is various, for the sustainable development provides a number of ways, it is not only the water conservation soil and water conservation of green water