natural activity

It is this type, of activity that serves our aim: to make piano playing a perfectly coordinated, totally effortless, and natural activity.

正是这种活动类型符合我们的目标：使钢琴弹奏成为一种完美的、协调的、全部地不费力的和自然性的活动。

Probiotics preparation is a natural activity of microbial agents, toxic, non-drug-resistant, no residue, no side-effects characteristics.

益生菌制剂是一种天然的活性微生物制剂, 具有无毒 、 无抗药性 、 无残留 、 无副作用的特点.

the mutually beneficial natural activity has several derivative benefits for people, including regeneration of soil-renewing stands of clover and widespread availability of sweet, sweet honey.

这种彼此互益的自然行为也给予人类许多额外的获益，像是翻新土壤使幸运草得以绵延生长，而滋味甜美的蜂蜜可遍布各地。

Therefore, the natural activity of Hep in mast cells is not anticoagulant.

故Hep在肥大细胞内的天然活性并不是抗凝。