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- Although PSA is extensively used in the fields of chemical industry and environment protection,etc,but low recovery is the disadvantage of PSA system. 尽管变压吸附在化工、环境保护等领域广泛应用,但是产品回收率低的弊端限制了装置的推广。
- Up to date,reduction smelting in reverberatory furnace is the dominated method,but low recovery efficiency is a common problem in this process. 从工艺来看,基本上还是以反射炉还原熔炼为主,但直收率低是火法炼锑中一个较普遍的问题。
- Up to date, reduction smelting in reverberatory furnace is the dominated method, but low recovery efficiency is a common problem in this process. 从工艺来看，基本上还是以反射炉还原熔炼为主，但直收率低是火法炼锑中一个较普遍的问题。
- In this paper, the reasons of low recovery in Mazhai are discussed, and the potential of improving oil recovery by zonal production is shown. 结合马寨油田的开采特点,论述了分层开采提高采收率的潜力,通过岩心实验证明了马寨油田分层开采可以提高采收率,现场应用结果证实了该结论。
- In this paper, the technique was introduced to improve the recovery of oxalic acid in the borneol production through investigating reasons of the low recovery before. 对冰片生产中草酸回收率低的原因进行了探讨，提出了提高回收率的方法。
- Individuals with low recovery times exhibit better aerobic fitness. Recovery time monitoring provides a simple way to evaluate the benefits of an exercise program. 短恢复时间表明该人的有氧健康状况较好。对恢复时间的监视提供了一种评估运动计划的简单方法。
- Municipal solid waste in Yunnan was landfilled without being separated,which caused low recovery efficiency of resource and second environmental pollution. 云南城市生活垃圾处理以填埋为主,资源化程度低,对环境造成了严重的二次污染。
- Sublevel caving technique has been utilized in Datong mining area under hard rock and hard coal, problems including low recovery ratio and spontaneous fire in gob have been overcome to achieve safe and high prodction. 大同煤矿集团“两硬”条件侏罗纪厚煤层下分层工作面应用低位放顶煤开采技术,解决了传统工艺所造成的煤炭资源回收率低、空区自然发火危险程度高等技术难题,实现了安全高效开采的目的。
- Application of caving mining technology with bottom under condition of flat dipping mid-thick body and unstable rock caused the most of trench and bottom drift, located in abutment , to be destroyed and low recovery in south area, Xishimen Iron Mine. 摘要在缓倾斜中厚矿体底板岩性不稳固的条件下，采用有底柱崩落法，由于电耙道大多处于空区边部应力集中的部位，致使堑沟及底部结构巷道破坏严重而使回收率极低，采用无底柱崩落卸压则可有效解决上述难题。
- The major problems such as low recovery ratio of protein,low yield and purity of finished products are found in the process of isolation soy protein by alkali extraction and acid precipitation. 大豆分离蛋白的碱浸提酸沉淀工艺，目前普遍存在成品得率低，纯度低的问题。
- The results calculated indicates that fine particles of the useful mineral cannot be recovered in a trapezoidal jiq and that overbreakage of feed is the main reason for low recovery. 证明人选拉度过粉碎是造成回收率低的主要原因。
- Conclusion:There's less complication,less pain,lower recovery rate,better cure rate of tension-free hernioplasty in treating hernia. 结论:具有并发症少,痛苦小,复发率低,恢复快等优点。
- The major problems such as lower recovery ratio of protein, lower yield and purity of finished products existed in the process of isolating soy protein by alkali extraction and acid precipitation. 大豆分离蛋白的碱浸提酸沉淀工艺，目前普遍存在蛋白质回收率低，分离蛋白成品得率低，纯度低的问题。
- The government is trying to keep a low profile on this issue. 政府力图在这个问题上保持低姿态。
- The singer forced his low notes. 那位歌手勉强唱出低音。
- He because of bashful but low head. 他因羞愧而低下了头。
- The ship lay keeled over at low tide. 那艘船因退潮而倾覆。
- My home town lies low in a hidden valley. 我的家乡位于一个隐蔽的山谷里。
- Low grades are getting Hellen down. 低分数使海伦闷闷不乐。
- After a brief rally share fall back to a new low. 股票经过一次短暂回升后回落到一个新的低点。
