The widely used inks were introduced such as solvent ink watermanship ink and the energy curing ink .

首先列举了当前应用 比较广泛的几种油墨，如溶剂 型油墨、 水 性油墨和能量固化 型油墨。

The key factor to advance watermanship is paddling skill enhancements ; therefore how to improve the effect of every paddle is increasingly concerned by coaches and research workers .

划艇每桨技术的改进 成为提高 运动员划船技术的关键所在，如何提高其效果则日益受到教练员和科研人员的关注。