The telomere and telomerase play an important role in the malignant progress of tumor cells and the maintenance of immortal cell lines.

端粒—端粒酶系统在肿瘤细胞的恶性进展和永生细胞的维护中起重要作用。

Gradual substitution of foreseen maintenance and preventive maintenance for traditional after maintenance represents significant progress in equipment management in the enterprise.

企业设备管理的一个重要发展趋势就是由预知维修、预防维修逐步替代传统的事后维修。

Infected by the market transfer effect, JTH make significant progress in sales representation of ATC product and Doppler radar maintenance business.

在市场传递效应的影响下，金天海又在空管产品代理和气象雷达维修业务取得突破。

The electronic PMS which can strengthen the maintenance of vessels is also in progress.

而旨在加强船舶维护保养的PMS软件系统也在积极准备中。

This operation interrupts maintenance commands that are in progress and serving the attached base stations.

该操作会中断正在运行并向附加基站提供服务的维护命令。