1.
"Frontier Defense V.S.Maritime Defense" and Geopolitical Strategy Choice of Current China;
“海防与塞防之争”与当前中国地缘战略选择
2.
opposing block protection
敌对闭塞区间防护法
3.
Ships corrosion-resistant plugs
GB/T3009-1982船用防蚀螺塞
4.
stem drain of state assets
防止(堵塞)国有资产流失
5.
For use with backflow preventer test cocks to protect from damage.
用于防回流阀测试旋塞，防止受到破坏。
6.
Illar to post pip sb at the postefended by soldiers, esp a frontier fort.
（部队的）驻地，防区；（尤指）边防要塞。
7.
place occupied and defended by soldiers,esp a frontier fort
（部队的）驻地,防区;（尤指） 边防要塞.
8.
The fort can't be defended against an air attack.
这个要塞无法防御来自空中的袭击。
9.
To prevent from speaking or crying out by using a gag.
堵住嘴塞住嘴以防说活或喊叫
10.
Embattled- Fire or the walls of a fortress or town.
垒墙状线条－，或是指城塞、镇的防御工事。
11.
On the Nursing to Prevent Astriction in the Acute Heart Attack Patient
谈急性心肌梗塞病人预防便秘的护理
12.
The method must avoid the production of thrombosis and embolism.
此法必须防止产生血栓或栓塞。
13.
Mediterranean League Against Thromboembolia Diseases
地中海防治血栓栓塞病联盟
14.
Either of two pieces of soft material put into the ears to keep out air, water or noise
（防止空气、水或声音进入耳内的）耳塞
15.
National Fire Protection Association. Quincy, Massachusetts.
全国防火协会。昆西，麻萨诸塞州。
16.
The fortress was highly vulnerable to attacks from the sky.
那要塞易于成为空袭的目标,很难防守。
17.
The fortified height or citadel of an ancient Greek city.
卫城古希腊城市的设防的城堡或要塞
18.
an opening (especially a gap in a dike or fortification).
一个开口（特别指堤防或要塞的裂口）。