BEIJING, April 17 (Xinhua) -- The following is a summary of recent science and technology news of China.

HUAWEI 5G CONTRACTS

Huawei has signed 40 contracts to build and operate the fifth-generation (5G) telecommunication infrastructure by April 15, preparing for the commercial launch of the new technology, the Chinese tech giant said on Tuesday.

BEIDOU NAVIGATION IN RAILWAY APPLICATION

The process of laying tracks for an intercity railway linking Beijing with Xiongan New Area is now applying the BeiDou navigation system.

NEW METHOD FOR MENISCUS REPAIRMENT

Chinese researchers have used a new tissue engineering method to build artificial meniscus that better mimic native ones.

The structure and mechanical strength of the meniscus they constructed are very close to native ones, which will effectively prevent the articular cartilage degeneration.