常融

后者常融合成大泡，开口于细胞游离面，形成分泌颗粒。

The latter type was often fused with large vacuoles and opened to the free surface of the cell as secretory granules .

西部高原地区以其强风化、常冻融的地质条件给矿山施工带来前所未有的挑战。

The geological conditions of strong weathering and freeze thawing in western plateau region brought an unprecedented challenge to the mine construction .

在寒冷地区，混凝土结构常因冻融循环发生破坏。

In cold areas , concrete structures often are damaged because of freeze-thawing cycles .

寒冷地区的混凝土路面常因冻融循环而表面剥落、内部疏松开裂，影响结构的使用。

The cement concrete pavements in cold regions often suffer from surface scaling or internal cracking under freeze-thaw cycles .

寒冷或严寒地区的隧道常在春融期出现渗漏并引发各种冰冻，造成隧道病害。

Leakage often occurs in the tunnel at cold region during the spring thawing period and results in some tunnel diseases .