退下

Unless since land it utilize by change watch, the with the fastest developing speed in cities and towns, the forest land , the whole area of herb ground increase very fast under the policy of grain for green, Yuan Tai station nonirrigated farmland increase by a large margin, the land of rivers and creeks is reducing, land use ratio of Jingchuan county remain to raise, the total area of use is reducing too.

从土地利用变化看，城镇的发展速度最快，林地、牧草地总面积在退耕还林还草的政策下增加较快，塬台旱地大幅度增加，河川地在减少，泾川县总的未利用面积在减少，而土地的利用率有待提高。

Thus conscience does make cowards of us all; And thus the native hue of resolution is sicklied o'er with the pale cast of thought, and enterprises of great pith and moment with this regard their currents turn awry, and lose the name of action.

这样，重重的顾虑使我们全变成了懦夫，决心的炽热的光彩，被审慎的思维盖上了一层灰色，伟大的事业在这一种考虑下，也会逆流而退，失去了行动的意义。说实话，这段话的光芒一点都不比第一句话少，太美了

To be, or not to be: that is the question:（III.1）生存还是毁灭,这是个问题: Thus conscience does make cowards of us all; And thus the native hue of resolution Is sicklied o'er with the pale cast of thought, And enterprises of great pith and moment With this regard their currents turn awry, And lose the name of action.

这重重的顾虑使我们全变成了懦夫，炽热决心的光彩，被审慎的思维盖上了一层灰色，伟大的事业在这种考虑下，也逆流而退，失去行动的意义。

Results: MRI findings included: 13 cases of abnormality of the rotator cuff, 4 of abnormality of the glenoid labrum, 2 of abnormality of both the rotator cuff and long head of biceps tendon, 2 of abnormality of long head of biceps tendon,5 of subacromial bursitis, 4 of abnormality of bony structure.

结果：21例肩关节MRI扫描发现：肩袖病变13例、盂唇病变4例、肩袖病变合并肱二头肌长头肌腱病变2例、肱二头肌长头肌腱病变1例、肩峰下三角肌下滑囊脂肪消失和滑囊炎或滑囊积液5例、肩胛骨肿瘤1例。21例中同时伴不同程度肩关节退行性变及骨创伤4例。5例经开放性手术或关节镜证实，其余16例行保守治疗后临床随访。

Methods Emergency endoscope ex-amination were carried out in20massive hemorrhage clients after gastrectomy and esophagectomy,after exposed and washed the bleeding part by cold0.9%NS,1∶10000adrenaline and hypertonic saline were injected in perifocal sub-mucosa.After stop bleeding and before move back the endoscope,spray some YunNanBaiYao and thrombase in the bleeding part to prevent secondary hemoorahge.

对食管、胃切除术后引起大出血的患者行急症内镜检查，用冰冻生理盐水100ml+去甲肾上腺素8mg反复冲洗，暴露出血部位后在病灶周围黏膜下注射1∶10000肾上腺素及高渗盐水，无出血后，退镜前于出血部位喷洒云南白药及凝血酶，防止再次出血。

Methods Emergency endoscope examination were carried out in 20 massive hemorrhage clients after gastrectomy and esophagectomy, after exposed and washed the bleeding part by cold 0.9% NS, 1:10000 adrenaline and hypertonic saline were injected in perifocal sub mucosa. After stop bleeding and before move back the endoscope, spray some YunNanBaiYao and thrombase in the bleeding part to prevent secondary hemoorahge.

对食管、胃切除术后引起大出血的患者行急症内镜检查，用冰冻生理盐水lOOml＋去甲肾上腺素8mg反复冲洗，暴露出血部位后在病灶周围黏膜下注射1：10000肾上腺素及高渗盐水，无出血后，退镜前于出血部位喷洒云南白药及凝血酶，防止再次出血。

Corneal topograph guided enhancement was safe and effecitive after PRK for regression 、central island and eccentric ablation.

角膜地形图引导下的个体化切削对矫正PRK术后出现的切削偏心、中央岛及屈光回退安全、有效。

Methods 11 cases loss UCVA or had optical aberration were undergone enhancement guided by corneal topograph , which included regression 5 cases、central island 3 cases、eccentric ablation 3 cases . Visual acuity and visual complication were followed for 6 months.

对11眼（11例）PRK术后出现视力不良者(其中偏心切削5例，角膜中央岛3例，屈光回退3例)在角膜地形图引导下进行个体化准分子激光切削，术后随访6月，观察视力和视觉症状。

In the absence of lumicrine factors, all four segments regressed to a transcriptionally undifferentiated state, consistent with the less differentiated histology.

在lumicrine因子的缺失下，附睾4个区域的转录水平回退到未分化阶段，与组织学上的未分化一致。

Natural restoration of vegetation is an important approach to ecological restoration. The detailed investigation showed that the succession trend was quiet different under different site conditions. Stipa bungeana Trin dominated on south facing slopes and mountain tops while Artemisia Vestita Wall and A.

以黄土高原典型沟壑区―吴旗县为例，通过对退耕或封禁后植被自然恢复过程及其物种多样性的调查分析，结果表明，在不同的空间立地条件下，植被的演替变化规律不同：阳坡与峁顶的植被演替趋向形成以长芒草为主的群落类型，而阴坡则形成以铁杆蒿和茭篙为主的群落类型。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。