This paper studied the injection weight method, which introduced the preparation of food additives series gas standard materials of benzene in carbon dioxide.
研究了注射重量法制备食品添加剂二氧化碳中苯系列气体标准物质的实验方法。
Researches have been carried out in the second reservoir by physical modeling method to find out the formula weight of the polymer, injection rate, slug size and viscosity of the polymer solution.
通过物理模拟方法，研究杏北油田二类油层聚合物相对分子质量、注入速度、段塞大小、聚合物溶液黏度、不同注聚方式对驱油效果的影响。
To effectively reduce the injection-machine mould-board weight, sequential optimization design method starting from high level topology optimization to low level parameter optimization was proposed.
为了有效地降低注塑机模板的重量，提出了从高层次拓扑优化到底层次参数化优化的顺序优化设计方法。
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