In fact a very lowlevel of real hydrocarbons is found outside the injection site.
实际上在注射处外部会发现有一种标准低的碳氢化合物。
2
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。
3
This method has obtained an evident effect in the oil field production. The advanced water injection can enhance the level of developing low permeability reservoirs and economic benefit.