Also, slenderized wool fiber has higher hydrothermal contractibility, it must keep the low temperature in the process.但是，拉细羊毛具有较高的热水收缩性能，在实际加工中要注意掌握低温原则。
Calcium is not only involved in building healthy bones and teeth.It also plays a large role in muscle contractibility.钙质不仅能够增强骨骼和牙齿的健康，同时它在肌肉收缩时也起着重要的作用。
