In ancient times, people knew how to make use of fire.
远古时候，人们就知道如何使用火。
No one knows what ancient savage ancestor of ours first begin to make use of fire.
没有人知道我们的哪个古代原始祖先首先开始使用火。
They have described humans as the animals who make tools, or reason, or use fire, or laugh, or any one of a dozen other appealing oversimplifications.
他们把人描述为或能制造工具、或能思考、或能用火、或能发笑、或具备其他任何一种虽然过分简化但很有吸引力的能力的动物。
In the long history of human use of fire, the fire brings us not only good, accidentally will make everything go up in smoke, don't take lightly.
在人类用火的漫长的历史上，大火带给我们的不仅仅只是有好处，不小心就会使一切化为乌有，不要掉以轻心。
Those who make arbitrary use of a completed construction project which should conduct fire control design in accordance with law but has not passed or fail to pass the fire control acceptance check;
依法应当进行消防设计的建筑工程竣工时未经消防验收或者经验收不合格，擅自使用的；
Fast shutter doors fire zoning and fire partition of don't usually make frequent use, once the area of fire shutter should effectively put into use.
防火分区和防火隔断的快速卷帘门平时不作频繁使用，一旦区域发生火情，卷帘应有效地投入使用。
In factories, workers use fire to melt metals to make things of different shapes.
在工厂里，工人们用火熔化金属，以制造各种形状的物品。
Peking Man, who lived from about 460,000 BC to 230,000 BC and who was able to use fire and make stone tools, is a good example of early Old stone Age men.
北京人大约生活在公元前460,000年到230,000年之间，能够用活，并能制造石头工具，是早期旧石器时代人类的一个好实例。
In factories, workers use fire to melt metals make things of different shapes.
工厂里，工人们用火熔化金属来制造各种不同形状的产品。
Introduces the calculation method of the power station fire fight system design, tally up to use the higher fire fight pressure, smaller tube path can make lower price of the engineering build.
作者介绍了电厂消防系统设计的计算方法，得出了用较高的消防压力、较小的管径可以使工程造价降低的结论。
It can economize oil nitrogen gas as well as make full use of recovery steam to use steam to bake the fire in the converter cover opening.
转炉氧枪口采用蒸汽封火，既节约有油氮气，又利用回收蒸汽。
Filter felt make up of fire resistant and antistatic fibre is trial produced, it is safe and durable in use for com-pound dust filter.
以阻燃纤维和导电纤维试制过滤毡，用于复合过滤器，既安全寿命又长。
Users make use of the product, according to their own needs test should be used to determine the optimum amount of fire retardant products to achieve the objective.
用户使用本产品前，应根据自己的需要试验确定最佳使用量，以达到产品阻燃的目的。
Users make use of the product, according to their own needs test should be used to determine the optimum amount of fire retardant products to achieve the objective.
用户使用本产品前，应根据自己的需要试验确定最佳使用量，以达到产品阻燃的目的。
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