Note that if the group is under fire and crossing a danger area , smoke should be used extensively , and security for the crossing elements should be provided by suppression fires 如果在穿越危险地带时遭到敌火力打击，就要多用烟雾弹，用压制火力掩护穿越的队伍。
Most of the overworked yankees bullpen received a rare day of respite , as igawa ' s effort enabled torre was able to steer clear of most of his danger areas 当井川庆的努力让老爹能够指导去清除那可能危险的区域(牛棚放火) ，大部分已经被超坏的牛棚得到了少见的一天休息。
For instance , if you suspect that there are anti - aircraft guns positioned in one direction , give the aircraft an egress direction that will keep them from flying into that danger area 比如，如果你怀疑在某一方向上部署有防空武器，将要向近距离空中支援飞机指出撤出方向以避开危险空域。
And last night they were ready to use this method at every opportunity ? quick - fire passing of wit and purpose in the danger areas , seeking always to produce an unlooked - for player in a position of threat 昨晚他们也准备尽可能地利用这种手段：在危险区域充满机智和目的的快速传球，永远为那个没有被盯防却又处在有威胁位置的人创造机会。
According to the facts of chemical spill accidents in waterway transport , systematic analysis is made on the suitable dispersion models and source strength calculation models of multiple spilled substance , resource and environment respectively , so as to decide the poison and fire & explosion danger area of an accident through the way of dispersion simulation . to resolve the problem to the calculation of spill amount from tanks , calculation formulas on various types of tanks were worked out ; at the same time , research is carried out on the source strength calculation of mixtures with regard to the possible spillage of chemical mixture in waterway transport . for the sake of convenient application , a computer software for the simulation of dangerous area is developed which can provide great assistance to the decision - making of emergency response and reach the target of reducing the damage of the life , property and environment to the smallest degree 根据水运化学品泄漏事故的具体实际，针对各种泄漏物质、泄漏源和环境条件研究了各自适用的扩散模式和源强计算模型，以便通过扩散模拟确定事故的毒害和火灾爆炸危险区域；为解决储罐泄漏量计算困难的实际问题，推导了适用各型储罐、液舱的泄漏量计算公式；针对化学品水路储运泄漏事故中泄漏物质可能会以混合物形式存在的情况，探讨了混合物的蒸气释放源强计算；为方便实用，开发了蒸气扩散危险区域模拟计算机软件，从而为事故应急决策提供了有力的辅助支持，以达到尽可能减少人员伤亡和财产损失，减轻环境污染的目标。
