田间的

The experiment results approve that the opener has good performance of anti-blocking, but it needs biggish positive press. When the bob-weight is 350 kg and the gross weight is 570 kg, the performances of penetrating depth and cutting stubbles are excellent in trials, which makes sure that the opener is worth of research.

从田间试验结果来看，该开沟器有很好防堵性能，但需要较大正压力，试验当整机配重为350kg，总重570kg时其入土深度、破茬性能都能很好的满足要求，有进一步研究开发的价值。

The results indicated that the trait of fibre leng th has obviously het erosis,there may have positive effects among the genes controlling the trai t of fibre length,but may have negative effects among the genes controlling the t rait of wood density.

通过对美洲黑杨青杨（P.catha yana）的68个F2、双亲及其4个F1无性系田间随机区组设计，5次重复，分析了与木材材性有关的木材密度、纤维长、纤维宽以及微纤丝角等性状。

A sugarcane leaf shattering and returning machine which adopted profiling pick-up device was designed to make it possible that the gap between flail knife and furrow is larger than the ridge height.

设计了一种采用仿形集叶器的甘蔗叶粉碎还田机，使甩刀离地沟间隙可超过垄高，较好地解决了普通甩刀无法捡拾沟底甘蔗叶的问题，田间试验结果表明：单位时间燃油消耗量降低约7%，捡拾率提高约4%，粉碎率提高约11%，粉碎后长度由25 cm降低到20cm，满足了甘蔗叶粉碎质量和生产农艺要求。

Using soil culture and micro-field experiment, we study the effects of controlled release nitrogen fertilizer on growth, physical index, output and fertilizer utilization ratio of the lettuce by comparing the controlled release nitrogen fertilizer with commercial quick-acting N fertilizers at different available N level.

采用盆栽和田间试验，探讨了控释氮肥脲甲醛不同供氮水平条件下的肥料效应；并采用微区试验比较了控释氮肥与其他速效氮肥品种对莴苣生长，形态指标，产量及利用率的影响。

The criterion for waterlogging reduction were obtained basedon experiments in the field of barley and winter wheat.

田间不同生态类型圩区的暗管排水试验表明，在地下排水设施中，塑料暗管对三麦的排水、降渍增产效果最为显著。

The results showed the modelling es-tablished and its condition for determination and solving could be used as predic-tion and simulation of the flucturation of soil water in the field under subdrainagecondition,the soil water status in the winter wheat and barley field could be ob-tained at different falling rates of underground water table under any meterologi-cal boundary condition.

结果表明，所建立的模型和定解条件能较好地拟合排降条件下田间土壤水分的变化，可以求获一定外界气象条件下，不同地下水降落速度时，麦田水分变化状况。

Judged from the papameters including the relative water content and the wa- ter potential of wilting point.

从正常灌水（田间持水量80％）所测定的萎蔫点相对合水量、萎蔫点水势和总体原初渗透压（ψz0）判断， 4种果树抗旱性的顺序是：杏、桃＞苹果＞葡萄。

The spectrum features on wheat canopy were studied by measuring and analyzing the reflectance and differential spectrums at 5 infested levels by wheat aphid.

通过对田间不同程度麦蚜危害的小麦冠层反射光谱测量，研究了各波段反射光谱的变异特征，并对光谱反射曲线进行微分分析。

Methods The method of the residual film in glass tube with 3 h exposure to insecticides was employed for determining toxicity of insecticides to both wheat aphid species, which were originally collected from different provinces of China during 2005-2007 and reared on wheat seedlings in the laboratory for more than 30 generations.

方法］从田间采集麦蚜在实验室内饲养30代以上，利用玻璃管药膜法测定其对杀虫剂的敏感度，每条毒力基线为2次以上独立测定数据合并后的计算结果。

However, the water technology field口到water from the pipeline will take some soil water furrow, such as to take corresponding measures to achieve better water-saving effect.

然而，这种输水技术从管道出水口到田间还需要一段土垄沟输水，如采取相应的配套措施可取得更好的节水效果。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。