At the preparation period adopted a method combined evaporation to dryness by water bath and microwave ashing which mostly reduced the losing of metals.
在预处理过程中采用水浴蒸干和微波灰化相结合的方法，大大减少了金属元素的损失。
The combined heating with solar heat source and heat source of centralized heat-supply system is an effective method to fulfill the extension of heating period and supply of domestic hot water.
引入太阳能热源系统与集中供热热源联合供热是实现增加供热时间及供应生活热水的有效方法。
Based on the method and combined with other techniques, frequency, period, time interval, phase and many other signals can be measured accurately.
该方法可被广泛地应用于高精度频率、时间及相位等信号的测量。
On the other hand, the long-term forecast of annual maximum flood peak discharge has been researched with the period method combined with the stochastic method.
现结合水文长期预报的特殊性，将关联规则挖掘分析方法应用于径流长期预报中。
On the other hand, the long-term forecast of annual maximum flood peak discharge has been researched with the period method combined with the stochastic method.
现结合水文长期预报的特殊性，将关联规则挖掘分析方法应用于径流长期预报中。
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