例句與造句

1. Aiming at some reservoir characteristics of low porosity , extra - low permeability , low oil saturation , and low productivity as well as shallow depth in changxi area of ansai oilfield , through a large number of laboratory experiments and field tests , some suitable fracturing technology and operation parameters have been optimized , including low temperature fracturing fluids . , propping fracture radius 、 pre - liquid and sand - fluid ratio
   摘要針對(duì)安塞油田長(zhǎng)西區(qū)低孔隙度、特低滲透率、低含油飽和度和淺層低產(chǎn)的油藏特性，通過(guò)大量室內(nèi)、現(xiàn)場(chǎng)試驗(yàn)研究，優(yōu)選出適合的壓裂施工參數(shù)，包括低溫壓裂液、裂縫支撐半徑、前置液和砂液比。
2. It's difficult to find fluid ratio in a sentence. 用fluid ratio造句挺難的