helix的复数形式怎么写？

Coil the fibre into a helix.将纤维卷绕成螺旋形。Normal, double - helix DNA is spiral, like a loosely coiled spring.正常的双螺旋DNA是螺旋形的, 像一根松松地卷曲的弹簧.The helix makes a complete turn every 3.6 residues.每个3.6个残基,螺旋正好转一圈....

n.螺旋结构...

Purpose To recognize the value of double helix CT in diagnosis of Chronic otitis mastoidea.目的:确定慢性化脓性中耳乳突炎的双螺旋CT扫描诊断价值.In order to represent Archimedes helix with control polygon, we construct Bernstein - like basis.为了用控...

helix的音标：helix的英式发音音标为：['hi:lɪks]helix的美式发音音标为：['hilɪks]...

他们中多数人都有岁数不到学龄期的孩子。Most of them have young children below school age.他总是感觉不舒服。也是，他都这个岁数了。He gets funny turns, you know. It's his age.她看起来比她的岁数年轻.She looks young for her years....

班伯里巡官过来看她，却被她打发走了。Inspector Banbury came up to see her, but she sent him away....

n.锁骨...

They sat under the leafy bower at the end of the garden and watched the sun set.他们坐在花园尽头由叶子搭成的凉棚下观看落日.She rolls the curtain up and light comes in her bower.玉户帘中卷不去.To enclose in or as if in a bower; embower.处于或似处于凉亭中; 用凉...

“苯中毒”的拼音为：běn zhòng dú...

v.拦截，拦路( waylay的第三人称单数 )...

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The unconformity marks the change from fluvial to marginal marine deposition.不整合面标志着河相至边缘海相沉积的相变.Most other Dutch soil types are fluvial.荷兰大多数其它土壤类型是沼生的.Introduced is a method for predicting sedimental sand body with flu...

vt.使交织，使合织，使织入...

His destination was Chobham Common, a long way from his Cotswold home.他的目的地是乔伯姆公地，那里和他在科茨沃尔德的家离得很远。The Thames rises in the Cotswold Hills.泰晤士河发源于科茨沃尔德丘陵....

hypochodriasis的音标：hypochodriasis的英式发音音标为：[haɪpət'ʃɒdrɪəsɪs]hypochodriasis的美式发音音标为：[haɪpət'ʃɒdrɪrsɪs]...

The smallest tactical unit in the Roman army trusted with independent maneuver was the 120 - man maniple.在罗马军队中,最小的战术编队是由120人组成的独立战团....

essayist的音标：essayist的英式发音音标为：['eseɪɪst]essayist的美式发音音标为：['ɛsˌeɪst]...

sulfide的复数形式为：sulfides...

v.画像( portray的过去式和过去分词 )，描述，描绘，描画...