[医]anencephalus，anencephaly ；

[例句] 结果: 无脑儿食管的组织学结构较正常胎儿分化较低,发育迟缓. Result: The histological structure of anencephalus differentiates primitively and grows very slowly.

[例句] 无脑儿显示胎儿颅穹窿缺陷. The absence of the fetal cranial vault anencephaly is shown here.

aptery，aplerism ；

[例句] 12凡水里无翅无鳞的, 你们都当以为可憎. Whatsoever hath no fins nor scales in the waters, that shall be an abomination unto you.

[例句] 利11:12凡水里无翅无鳞的、们都当以为可憎. Whatever in the water does not have fins and scales is abhorrent to you.

[法] gratuitous，voluntary，volunteer ；

[例句] 我为你所做的一切都是免费的，无偿的，你明白吗？ What I did for you was free, gratis, you understand?

[例句] 我知道他的帮助不会是无偿的。 I knew his help wouldn't be given gratis.

[生态]harmlessness ；

[例句] 在制造疫苗时, 病毒要无害化,但不应破坏其免疫学特性. In making a vaccine, the virus is rendered harmless without destroying its immunologic properties.

[例句] 实现无害化生产的关键环节在于规范企业行为. The key to innocuous production is to normalize the enterprise operations.

inefficacy ；

[例句] 因经常使用或尽人皆知而无效力的; 陈腐的. Too often used or too well known to be effective; hackneyed.

[例句] 所以你们看看, 想像力需要散漫─长时, 无效力, 快乐无事,偷懒又拖拖拉拉. So you see, imagination needs moodling - long, inefficient, happy idling , dawdling and puttering.

apyrexia ；

[例句] 试验结果表明,磨料水射流切割无热影响区. Theresult proved , abrasive water jet metal - cutting don't exit heat effect.

[例句] 粉末状纤维素最常用于添加到面包中提供无热的松密度. Powdered cellulose is most often added to bread to provide non caloric bulk.

aseptic，sterile，[医] amicrobic，axenic，germfree ；

[例句] 尿液是无菌的。 Urine is sterile.

[例句] 手术室应该是个无菌的环境. An operating theatre should be a sterile environment.

[医] anotia ；

[例句] 死人无耳, 死后的名声等于风马牛. Dead men hear no tales; posthumous fame an Irish bull.

[例句] 群居,两者均为无耳海豹. 因其身躯硕大,雄兽鼻粗壮能膨胀, 因而得名. Both are gregarious earless seals. The male an inflatable , trunklike snout.

inerrancy，[计] no error ；

[例句] 保持电脑安全 、 无错误高速运转. Keep your PC safe, error - free, and running at top speed.

[例句] 法院并非全无错误. A court of law is not infallible.

inorganic，[计] inorganization ；

[例句] 我们需要把有机的和无机的废料分开. We need to sort organic from non - organic waste.

[例句] 介绍了几种用溶胶凝胶法制备ITO薄膜 的工艺方法,用其中一种无机的方法成功制备了ITO透明导电膜. Several methods of the preparation of ITO thin film with sol - gel technique were introduced.

[数] infinitely small，infinitesimal ；

[例句] 分量是在无限小频率间隔上出现的. The components occur at infinitisimally small frequency.

amimia ；

[例句] 他面无表情地站在那里，听法官宣布判决。 He stood emotionless as he heard the judge pass sentence.

[例句] 出席葬礼的人大多都面无表情地静静站着。 Most of those attending the funeral stood silently showing little emotion.

inorganization ；

[例句] 冠瘿是无组织的正在不断增殖的植物细胞所组成的癌状物. Crown galls are cancerous growths composed of disorganized and proliferating plant cells.

[例句] 他们的给养处于无组织的状况下. Their commissariat had no organization.

imperception ；

[例句] 痛苦毁灭了他们的灵魂，把他们的思维冰冻在无知觉的恐惧之中。 The pain destroyed their soul and froze their mind in insentient panic.

[例句] 她的声音继续在热浪中挣扎, 向它冲击着, 把无知觉的热气塑成一些形状. Her voice struggled on through the heat , beating against it , molding its senselessness into forms.

unmatched，invincible，unprecedented ；

[例句] 人民的军队所向无前. The people's army is invincible.

[例句] 酸洗棒球帽, 100%棉, 无前衬,带三明志, 金属后闭扣. Acid wash baseball cap, 100 % Cotton twill, Unconstructed, Metal button back . close.

proletarian ；

[例句] 全世界无产者, 联合起来! Working men of all countries, unite!

[例句] 他突然想到, 无产者仍旧是这样. The proles , It'suddenly occurred to him, had remained in this condition.

[动] acerous，hornlessness ；

[例句] 善游泳, 喜群居, 雄有角 、 雌无角. Good, male, like to swim with horns, female without horn.

[例句] 正常宫颈鳞状上皮,无角化. This is normal cervical non - keratinizing squamous epithelium.

out of all reason，unjustifiable，unreasonable，[法] uncalled for，inurbane ；

[例句] 我知道他们向你提出了最无理的要求. I know they have made the most unreasonable demands on you.

[例句] 他们用无理的要求催逼我. They're crowding me with their unreasonable demands.

objectless，purposeless ；

[例句] 在几个小时漫无目的的搜寻之后，他们快没燃料了。 After several hours of aimless searching they were getting low on fuel.

[例句] 他过着一种漫无目的的生活. He led an aimless sort of life.

breathless，calm，windless ；

[例句] 河水在无风的宁静中显得光滑如镜. The river is glassing in a breathless calm.

[例句] 在无风的天气里, 可以看到烟从烟囱中缭绕升起. In the still air , smoke could be seen curling up from the chimney.