低下

World Bank says that the allocation of water is inefficient, unsustainable and inequitable.

世界银行在报告中提到印度的水资源分配效率低下，稳定性差而且不公平。

The results mentioned above proved that the learning and memory disturbance induced by the damaged rat substantia innominata was central cholinergic system malfunction due to the cholinergic cell damage and asending fiber antergrade degeneration and cortex was lack of cholinergic contral.

本研究结果证明：鼠脑无名质区破坏引起的学习、记忆障碍，是由于中枢胆碱能细胞损害，引起胆碱能上行投射系统顺行性变性，致使大脑皮层失胆碱能支配，发生胆碱能系统功能低下所致。

Spontaneous germ cell death is very important for the removal of germ cells and control of the quantity and quality of sperm. But excessive germ cell death will lead to diminish spermatogenic function and decrease the quality and quantity of sperm. Excessive germ cell death triggered by various regulatory stimuli, including deprivation of gonadotropins and intratesticular testosterone or by estradiol treatment in rats via apoptosis.

生精细胞凋亡是哺乳动物精子发生过程中的一个显著特点，其生理性凋亡对于去除受损的生精细胞，控制细胞数量和保证精子的质量具有重要意义，但生精细胞的过度凋亡可引起生精功能低下，使精子的数量和质量降低。

The traditional method of examination must deal with many procedures such as creating test questions , printing test papers , organizing examination room , invigilation , and judging test papers , so it is low-...

传统的考试方法由于涉及到组织命题，试卷印刷，考场安排，监考，组织判卷等诸多环节，所以其时间周期长，效率低下。

The traditional method of examination must deal with many procedures such as creating test questions , printing test papers , organizing examination room , invigilation , and judging test papers , so it ...

传统的考试方法由于涉及到组织命题，试卷印刷，考场安排，监考，组织判卷等诸多环节，所以其时间周期长，效率低下。

The traditional method of examination must deal with many procedures such as creating test questions , printing test papers , organizing examination room invigilation , and judging test papers ,...

传统的 考试方法由于涉及到组织命题，试卷印刷，考场安排，监考，组织判卷等诸多环节，所以其时间周期长，效率低下。

Help advance somebody's career breed is much with farmhouse breed free, stay oneself give priority to, hard extract rejuvnation, seed selection actor is planted some; breed are jumbly, degrade serious, high grade rate and commodity rate are low.

栽培品种多以农家品种自选、自留为主，难以提纯复壮，选育优种；有的品种混杂、退化严重，优质率和商品率低下。

I leave the low, katabatic valleys to the regional planners and ecologists, since they insist on staying in those dammed-up areas, and I propose that the one good thing Olmsted said was "aptness"– things should be apt, appropriate…………..

至於那些低洼阴湿的谷地，就留给区域规划师与生态学家了；是他们自己执意要待在那堤堰围绕的低下地方的。

Methods The lactational rat model with hypoprolactin was established by subcutaneous injection of Bro (0.5mg/kg).

通过对哺乳期大鼠皮下注射Bro 0.5mg/kg，建立哺乳期大鼠PRL水平低下模型。

Objective To study the counteraction of l-tetrahydropalmatine (1-THP) against bromocriptine-induced hypoprolactin in lactational rats and to prove that l-THP is an antagonist of dopamine D2 receptors.

目的 研究左旋四氢巴马汀(l-tetrahyoropalmatine， l-THP)对溴隐亭(Bromocriptin， Bro)诱导的哺乳期大鼠催乳素(Prolactin， PRL)水平低下的拮抗作用，以证实其为中枢多巴胺能D2受体抗剂。

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。