技术上这些电波通常是短暂而频繁的激发出来，而并非以恒定速率释放，这似乎不会造成多大的生物性损伤。

Rather than being emitted at a constant rate, technology demands they are ‘pulsed’ in short and frequent bursts which appear to be far more biologically harmful.

youdao

新鲜心包组织生物性更好并具有一定的生长潜能，其远期退变和钙化，可能与受机械应力损伤相关性更大，此项内容有待进一步研究。

The problem of degeneration and calcification within fresh pericardial valves may due to the damage caused by mechanical stress more than others, which should be proved in further studies.

youdao

新鲜心包组织生物性更好并具有一定的生长潜能，其远期退变和钙化，可能与受机械应力损伤相关性更大，此项内容有待进一步研究。

The problem of degeneration and calcification within fresh pericardial valves may due to the damage caused by mechanical stress more than others, which should be proved in further studies.

youdao