韧皮

Through the study on main nutritive ingredients of Cangzhou golden Chinese date,we found that the quality of golden Chinese date was determined by its sugar content.

沧州金丝小枣以其皮薄核小、肉厚而韧、含糖量高、掰开后可拉出金黄色糖丝的独特品质，享誉囤内外市场，是河北省主要的创汇农副产品之一。

He had been warmly dressed in three layers of clothing—leggings, loincloth and jacket made of the hide of deer and goat, and a cape made of grass and bast, the long, tough fibers from the bark of the linden tree.

他穿了三层衣服，确保身体温暖——绑腿、腰布、以鹿或羊皮制的夹克，还有草与树皮纤维制的斗篷，纤维长而韧，是从椴树皮抽出来的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。