查询词典 male and female

Companionate marriage is that unmarried male and female both sides in the love stage who attempt to look for the role of husband and wife before marrying, and they has not carried out the marriage registration in legal procedure, then live together voluntarily and secretly ,like married couple .

试婚是未婚的男女双方在恋爱阶段，为尝试各自是否适合夫妻的角色，未办理婚姻登记的法律手续，便自愿或明或暗地以夫妻的名义进行婚姻生活的尝试，是婚姻的准备阶段，是恋爱与婚姻之间的一种移行和过渡的形式。

Objective Study the changes of acetylcholinesterase activity in different strains of adult male and female Culex pipiens pallens, and provide a basis for the insecticide-resistance detection of mosquitoes by biochemical method.

目的 探讨乙酰胆碱酯酶(acetylcholinesterase， AChE)在不同品系和不同性别淡色库蚊的变化，为应用生物化学方法检测蚊虫抗药性提供依据。

But they did show that different parts of the male and female brain are activated and deactivated during sexual stimulation.

但扫描结果显示在性刺激期间，男性和女性大脑的不同区域处于活跃和迟钝状态。

By combining with the author's own research work, the progresses of study on sperm egg identification, acrosomal reaction, cortical reaction, and formation of male and female pronucleus in decapod crustacean are reviewed in the paper.

结合作者近期的研究工作，从精卵识别、顶体反应、皮层反应、雌雄原核的形成和结合等方面综述了近年来十足类甲壳动物受精细胞学方面的研究成果，并展望了这一领域的研究与应用前景。

A total of one hundred fifty three healthy male and female adults were entered into a six month,doubleblind clinical study designed to evaluate the effect of a dentifrice containing 0.3% triclosan and 2.0% PVM/MA copolymer in a 0.243% sodium fluoride/silica base, relative to a 0.243% sodium fluoride silica base control dentifrice on supragingival plaque accumulation and gingivitis.

本研究的目的是证实含0.3％三氯羟苯醚，2.0％PVM／MA及0.243％氟化钠以二氧化硅磨料牙膏在减少菌斑积聚和牙龈炎形成方面对中国成年人群的效果。153名健康男女分为实验组及对照组，用双盲法评价6月后临床效果。采用纳入和排除的评价标准后进行了基线检查，实验对象每日使用分配的牙膏和软毛牙刷早晚刷牙一次，3个月和6个月再次检查。检查结果表明，使用含有三氯羟苯醚－共聚体牙膏组与使用不含该成分的对照组相比，实验对象的牙菌斑、牙龈炎指数分别减少16.1％及24.3％，均有统计学显著性意义（P＜0.001）。

Male and female rats and mice were gien four different doses of sodium dichromate dihydrate in their drinking water ranging from 14.3 mg/l to 516 mg/l for two years.

研究人员在雌雄大鼠和小鼠的饮用水中加入4种不同剂量（14.3毫克/升至516毫克/升）的重铬酸钠，为期两年。

Second, a disproportional rate of male and female students in one class is conducive to class discipline and learning effect.

其次，男女比例不一致有利于班级纪律和学习成效。

There has been some research claiming to show that male and female brains show some difference in structure and that people with gender dysphoria have brains structured like those of their psychological rather than physical sex.

有一些研究声称表明，男性和女性的大脑显示了一些不同的结构和人与性别有不良的大脑结构一样，他们的心理，而非身体的性别。

From the indicators such as adult eclosion rate and wing length of male and female guide line,the effects of using artificial feeding and using midway host were identical.

从花绒穴甲子代成虫的羽化率、雌雄鞘翅长等项指标看，用人工饲料饲养和用中间寄主饲养的结果基本相同。

Emblazonry melds male and female organs into one symbol of fashion and design.

而在本次展览中，它则提示着艺术家在母题和语言上一种灵活的状态。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。