The underground water dropped in northern China, peasants has to plant dry-proof and low-yield products, even deserted.
中国北方地区地下水位下降，农民不得不改种耐旱、低产作物，甚至摞荒。
This paper puts forward a new equipment combine to measure a production profile of Low-yield and three phases flow well.
针对低产量三相流动生产井，提出了新的产出剖面测井仪器组合。
Thus it proved that deeply-exploitation of middle - and low-yield field possessed better economic and ecological profit.
由此表明，中低产田深度开发具有良好的经济效益和生态效益。
But during the Cold War, a handful of soldiers were ready to start a nuke fight, right up-close and personal, using portable launchers and low-yield bombs.
但是，在冷战时期，一小撮士兵准备使用便携式、低当量核弹发射器，发动一场近距离、面对面的核战争。
As aquifers are depleted and irrigation Wells go dry, farmers either revert to low-yield dryland farming or, in the more arid regions, abandon farming altogether.
随着蓄水层的枯竭和灌溉井的干涸，农民不得不改种低产的旱地作物，在更为干旱的地区，他们干脆放弃耕作。
Under the instruction of metabolic control theory, the screening of leucine auxotroph was determined as the method of selecting the mutant strain of low-yield fusel oil.
以代谢控制理论为指导，确定以选育亮氨酸营养缺陷型菌株作为初筛方法，选育低产杂醇油啤酒酵母突变菌株。
So, please, decide now to deliberately limit the time and attention you spend on "low yield" relationships.
所以，请现在就有意识地限制对“低产”关系花的时间和注意力。
There are some problems to await to settle in the traditional produce craftwork of vanillin for instance high cost, low yield, the complex craftwork and serious waste pollution etc.
传统的香兰素生产工艺普遍存在着成本高、收率低、工艺复杂及三废污染严重等有待解决的问题。
"Most of the vineyards here rely on cellar-door sales," Mr. Goss told us. "That's what this area's all about: low yield and very high-quality wines."
戈斯先生告诉我们，这里大部分的葡萄酒直接在地窖销售了，低产高品质是这里葡萄酒的特点。
A common stock of a nationally known company whose value and dividends are reliable; typically have high price and low yield.
国内知名企业发行的其价值和股息均有保证的普通股；高价低收益。
Fruit contains total quantity of heat is not high, low yield of mostly belongs to medium heat.
水果所含的总热量并不高，大都属于中等偏低的产热量。
Calm steel disadvantage is concentrated shrinkage, low yield, high price.
镇静钢的缺点是有集中缩孔，成材率低，价格较高。
Cassava is a superior crop in Guangxi, however, at present its planting acreage is rather limited owing to the low yield.
木薯是广西的优势作物，但目前栽培面积还有限，产量低。
The variety Norland had poor resistance and low yield, but it had high dry mater and starch content.
诺兰的抗性差、产量低，但干物质、淀粉含量高。
Dimethylethanolamine (DMEA) is an important chemical product, but there exists low yield disadvantage in its current synthesis technique because of many side reactions.
二甲基乙醇胺(DMEA)是一种重要的化工产品，其现有的合成工艺由于存在副反应导致收率较低。
Seeding propagation and extensive management were important factors that resulted in low yield and poor quality.
实生繁殖、经营管理粗放是造成板栗产量低、品质差的重要因素。
But many defects exist in the pear industry such as unreasonable varieties structure, low yield per unit area, the shortage of high quality fruits, poor benefit and so on.
但是，从整个梨产业结构来说还存在不少问题，如品种结构不合理，单位面积产量低，优质果少，经济效益差等。
The low yield doesn't seem to bother them much, even now.
即使现在，他们似乎并不太忧心低收益的问题。
It overcomes the drawback of DMC low yield in traditional technology, raises the output of the product DMC and decreases the consumption of energy.
克服了传统工艺碳酸二甲酯收率低的弊端，提高了产品的产量，降低了能源消耗。
The problems for pyrolysis are low yield, difficult separation, wide diameter distribution and so on.
聚合法原料来源便宜，缺点是分离困难，收率较低，球径分布较宽等。
Sulfuric acid was used as a catalyst to prepare acetic esters with more by-product, low yield, equipment corrosion and acid wastewater.
由于硫酸作催化剂合成羧酸酯副产物多、产率低、且腐蚀设备、造成环境污染。
Its characteristics: the production process complicated and difficult to burn, low yield.
其特点：制作工艺复杂，烧制难度大，成品率低。
An experimental and theoretical study of the earthquake mitigation effect of hysteretic dampers using ultra low yield point steel was presented in this paper.
本文通过试验研究和理论分析探讨极低屈服点软钢阻尼器的减震效果。
Technique and countermeasures were proposed for transformation of low yield timber forest after analysis on its causes through investigation on current resources of low yield and scattered forest.
在调查研究全省现有低产林及疏林资源基础上，着重分析了低产用材林形成的原因。并提出了低产用材林改造的技术路线与相应措施。
Up to date, there are many some problems in the preparation of nano onion-like fullerenes (a high cost and low yield ).
但是对洋葱状富勒烯的制备研究，目前还存在许多的问题（能量损耗高、收率低等）。
Because of low yield, saponin B was not identified.
皂甙b因得率极低，未能完成鉴定。
A study was done on the problems such as the relatively low yield, low purity and dark color of the corn-gluten foaming powder produced by means of hydrolyzing corn gluten with alkali.
在用碱水解玉米麸质粉生产玉米蛋白发泡粉的基础上，就玉米蛋白发泡粉得率低，纯度低，色泽深等问题进行了研究。
Direct esterification will take long reaction time with low yield.
直接酯化法反应时间长，产率低。
Direct esterification will take long reaction time with low yield.
直接酯化法反应时间长，产率低。
应用推荐