1.
The Yanshan Hills provide a natural defence for Beijing.
燕山是北京的天然屏障。
2.
The Sahara Desert is a natural barrier between North and Central Africa.
撒哈拉沙漠是北非与中非之间的天然屏障.
3.
The river formed a natural blockade to the spread of the forest fire.
那条河成了阻止森林大火蔓延的天然屏障。
4.
Healthy, skin, mucous membranes, and cilia are natural barriers to many viruses.
健康的皮肤，粘膜和纤毛是许多病毒的天然屏障。
5.
Nor can we any longer fall back on our historical trump card of geographic isolation.
我们也不再能依靠天然屏障的历史王牌。
6.
The vast reed marshland serves as a protective screen.
浩瀚的芦苇荡像一个天然的绿色屏障。
7.
Although membranes are barriers, they must also be considered to function in transport.
虽然膜是屏障，它们也具有转运的机能。
8.
Shaoguan is a key forest zone in China, a center of timber forest, water-source forest, natural forest and a key center of bamboo of Guangdong, and an ecological barrier for the Pearl River Delta.
韶关是中国重点林区，广东用材林、水源林、天然林和重点毛竹基地，珠江三角洲的生态屏障。
9.
Life may have fluttering wings, but it can never fly over the obstacle of fate, or over death.
生命纵然能生出飞舞的翅膀，却无法飞越命运的屏障，无法飞越死亡。
10.
Tanks are insulated by polyurethane foam with a vapor barrier which provides weather protection.
用聚亚安酯泡沫把储存罐和防止恶劣天气的蒸气屏障隔离开。
11.
Discussion on Shenzhen Gas Supply Security in Winter Season
深圳市冬季天然气供气保障方案探讨
12.
It is strange that the car should break down today in exactly the same place where it broke down yesterday.
真奇怪，这辆汽车今天竟然又在昨天出故障的同一地点出了故障。
13.
barrier correction
屏障的隔声修正数值
14.
The sun's rays could not wedge their way through the barrage of foliage.
阳光透不过树叶的屏障。
15.
correction for the effect of barrier
屏障的隔声修正系数
16.
The cell surface barrier had been broached.
细胞表面屏障被凿开。
17.
If equipped, install sound bar.
如果配备，安装声音屏障。
18.
They had erected the barriers to hold back the blood.
他们筑起屏障阻挡洪水。