发育不良

Objective:To evaluate the efficacy of imaging diagnisis of congenital pulmonary agenesis and hypoplasia in children.

目的：评价X线检查对小儿先天性肺不发育和发育不良的诊断作用。

Radiography is a good procedure in diagnosis of the most cases of congenital pulmonary agenesis and hypoplasia.

X线检查对先天性肺不发育和发育不良是一很好的诊断方法。

Methods:The 13 cases of congenital pulmonary agenesis and hypoplasia were veritfied by bronchcscopy and operation or pathology the characteristics of the X-ray,CT and bronchography were analysed.

对13例先天性肺不发育和发育不良经支气管镜检、手术或病理证实的X线平片、CT扫描、支气管造影分析其影像学表现。

OBJECTIVE: To study the effects of prolonged 75% oxygen exposure on the expression of vascular endothelial growth factor and its receptors (VEGFR1 and VEGFR2) in the neonatal rat lungs and to elucidate the effects of prolonged exposure of high concentration of oxygen on lung vascular development and its relationship with bronchopulmonary dysplasia.

目的：研究持续吸入75%氧对新生大鼠肺血管内皮生长因子（vascular endothelial growth factor，VEGF）及其受体（VEGFR1和VEGFR2）表达的影响，探讨较高浓度吸氧对肺血管发育的影响及与支气管肺发育不良（bronchopulmonary dysplasia，BPD）的关系。

Second , girls in their adolescence must wear underwear, or else may lead to breast or ligament hurt, crookback or hypogenesis.

第二、青春发育期间一定要穿内衣，否则会引起乳房损伤、韧带拉伤、驼背和发育不良等现象。

The correlation analysis indicated that the apple fruitlet weight was significantly positively correlated with the total Ca, Mg, K content of single fruitlet, and also with the diameter, number of vascular bundles, xylem thickness and phloem vascular bundles area of pedicel.

相关分析表明，苹果幼果的单果重和Ca、Mg、K含量与果柄的直径、维管束数目、木质部厚度、韧皮部维管束面积呈显著正相关，说明幼果发育与Ca、Mg、K吸收和果柄结构密切相关，Ca、Mg、K吸收率低和果柄发育不良可能是导致落果的重要原因。

c/b rate and AI can well reflect the prognosis of acetabular hypoplasia after treatment.

c/b比率和AI能很好地提示髋臼发育不良治疗后的发育。

The higher death rate of the fetus that the puerpecal delivered with IH than NIH was mainly due to the placenta maldevelopment which cause the amniotic fluid to be inspired into fetus lungs, fu

肝炎产妇胎盘发育不良引起胎儿肺羊水吸入，进而导致胎儿心、肺功能障碍、发育畸形，是造成肝炎产妇分娩的胎儿死亡的主要原因。

With the amplification of farming scale and increase of yield, a series of problems to be resolved urgently appear in production, for example: Bad ovary development of female crab, inclining egg-holding rate, high mortality of embryo development, low survival rate of juvenile crab, the shortage of good quality juvenile, precociousness of crab etc.

随着河蟹养殖规模的扩大、集约化程度和产量的提高，在实际生产中出现了一系列亟待解决的问题，雌蟹亲体的性腺发育不良、抱卵率下降、胚胎发育死亡率高、幼体育成率低、质优量足的苗种供应不足、河蟹性早熟等问题，都严重制约了河蟹养殖业的健康、稳步发展。

Regular diet, in addition to containing a large number of animals necessary nutrients, but also contains a certain amount of anti-nutritional factors, these anti-nutritional factors is difficult to digest in the use of sheet monogastric animals, so that intestinal contents became viscous, and wrapped a large number of nutrients, affect the digestion and absorption of nutrients, resulting in animals indigestion, lax and poor growth.

常规日粮中，除含有大量动物必须的营养物质外，还含有一定量的抗营养因子，这些抗营养因子难被单胃动物消化利用，使肠内容物变得粘稠，而且包裹大量的营养物质，影响营养物质的消化吸收，造成动物消化不良，排粘粪，发育不良等。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。