The paper introduced the utilization of chemical herbicides in the forest fire break, including herbicide selection, spraying time and methods.
文中介绍了在防火线维修中化学除草剂的应用技术，包括除草剂种类、配方选择、作业时间确定、配药用水解决办法和施药方法等。
natural fuel break
天然防火线的防火隔离带如河流
The immediate orchard boundary should consist of a fire-break.
紧靠种子园边界应设有防火线。
The first line is the firewall.
第一道防线是防火墙。
And I want to get you out of the line of fire too, just in case."
我也很想把你从火线上调开，以防万一。”
The enemy opened fire on our lines at dawn.
拂晓时敌人向我们的防线开火。
A barrage of drumfire.
连续的猛烈炮火组成的防线
Fire Services Riser :A room containing fire services mains for hydrants, hose reels and fire alarm cabling.
消防控制室: 用来存放消防栓, 软管及火警线缆等消防装置的房间
It protects internal network together with firewall and antivirus tools.
它和防火墙技术、防病毒技术一起构筑起了网络的安全防线.
a fire-resistant house
耐火 [防火] 房屋
among these were a relay booster for telegraph lines and a fire-safety curtain for theaters.
其中包括电报线路的继电调压器和剧院防火帘。
Analysing the Cause of Abnormal Damage of Sha-Huo Water Supply Pipeline
沙—火供水管线异常管损原因的分析及防治
Embattled - Fire or the walls of a fortress or town.
垒墙状线条－火，或是指城塞、村镇的防御工事。
Electric Sparkle Cutting Bad Reasons for Product Quality and Prevention
电火花线切割工件质量差的原因及预防措施
Fireproof design of metro vehicle for Shenzhen Metro Line 1 express
深圳地铁一号线增购项目车辆的防火设计
Traditionally, users usually adopt Firewall as their first line of defence.
传统上，网络用户一般采用防火墙作为安全的第一道防线。
Confine fire spark range with fire proof sheet.
用防火材料制成防火屏防止火花喷射。
Strictly follow the principle of “four precautions”. That is, Shockproof, Fireproof, heatproof and Oilproof.
答：切实做好“四防”：防震、防火、防热、防油。
Impervious or resistant to damage by fire.
防火的，耐火的不受火损害或抵抗火的