sand extraction

常見(jiàn)例句

雙語(yǔ)例句

• The inference can be proved by the artificial oil mixing test and oil-bearing sand serial extraction.
  通過(guò)原油混合試驗(yàn)和油砂連續(xù)抽提試驗(yàn)證實(shí)了混源油的推測(cè)。
• The variations of flow pattern cause headwater erosion, and the sand gravel extraction will result in comprehensive adjustment of riverbed , affecting riverbed stability.
  水流流態(tài)變化引起溯源沖刷，進(jìn)而導(dǎo)致河床全面調(diào)整，影響河床穩(wěn)定。
• Planning sand extraction scheme in accordance with potential channel change and combining channel modification with sand extraction can improve navigation condition to a certain extent.
  科學(xué)合理規(guī)劃采砂方案，順應(yīng)河床演變趨勢(shì)，將整治河道與采砂疏浚河道有機(jī)地結(jié)合起來(lái)，可除害興利，在一定時(shí)期內(nèi)和一定程度上改善航道條件。

權(quán)威例句

• Unable to stop Canadian oil drilling and tar sand extraction programs, environmental groups are now trying to block any pipeline that is proposed out of the oil producing regions.
  FORBES: Keystone XL: Voting for the Stone Age
• Major activities in the area are agriculture, forest management, sand and gravel extraction, industry (diverse types), and ecotourism.
  UNESCO: EDUCATION
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