When all is working perfectly, the return signal for Cryosat 2 comes exactly from the boundary between the ice and any overlying snow.

当一切正常运行时，Cryosat 2返回信号就会准确地从冰和覆盖积雪边界传回来。

Sometimes the pathogen will have come through the overlying skin or up through the nose, but it’s more likely that there’s an anatomical defect to blame.

有时，病原体会通过皮肤或者从鼻子进入体内，但更可能是有解剖学上缺陷。

Icesat 2, an American craft, provides laser-altimeter data that record the height above sea level of the top of the snow that overlies the ice.

美国飞船Icesat 2提供激光高度计数据，该数据记录了覆盖在冰层雪顶海拔标高。

The superstratum of timidity which often overlies those who are daring and defiant at heart had been passed through, and the mettlesome substance of the woman was reached.

那些外表羞怯人往往掩盖着内心勇敢和无畏，此时这层外表已被穿透，这个女人又变得有气魄起来。

Tissues that have elastin fibers are tissues like the arteries, skin, and lungs, and tissues that have microfibrils but no overlying layer of elastin are like tendons and the ciliary zonules that hold the eye lens in place.

弹性纤维存在于动脉、皮肤、肺等组织，无弹性蛋白但含有微纤丝组织包括肌腱以及维持晶状体正常位置睫状带等。