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内胚层沟
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  “内胚层沟”译为未确定词的双语例句
     (2)The process of embryonic development has been divided into 12 stages: fertilized egg,cleavage,blastula stage,protogastrulation stage,embryon with semicircular gastrular furrow,embryon with circular gastrular furrow,metagastrulation stage,nauplius stage,metaauplius stage,protozoea stage,zoea stage,metazoea stage;
     (2)克氏原螯虾的胚胎发育过程共分12期:受精卵、卵裂期、囊胚期、原肠前期、出现半圆形内胚层沟、出现圆形内胚层沟、原肠后期、无节幼体前期、无节幼体后期、前蚤状幼体期、蚤状幼体期和后蚤状幼体期;
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     On the12th day the ectoderm of third branchial cleft covers the endoderm of third pharyngeal pouch.
     12d鼠胚鳃外胚层包绕咽囊内胚层
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     Olfactory groove meningioma
     嗅脑膜瘤
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     Some aspects of sulcus vocalis
     声带的临床特点
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The embryonic development of crayfish(Procabarus clarkia) was studied.The results were summarized as follows:(1)The process of embryonic color changed as follows: brown→brown with yellow→yellow with black→total black.(2)The process of embryonic development has been divided into 12 stages: fertilized egg,cleavage,blastula stage,protogastrulation stage,embryon with semicircular gastrular furrow,embryon with circular gastrular furrow,metagastrulation stage,nauplius stage,metaauplius stage,protozoea stage,zoea stage,metazoea...

The embryonic development of crayfish(Procabarus clarkia) was studied.The results were summarized as follows:(1)The process of embryonic color changed as follows: brown→brown with yellow→yellow with black→total black.(2)The process of embryonic development has been divided into 12 stages: fertilized egg,cleavage,blastula stage,protogastrulation stage,embryon with semicircular gastrular furrow,embryon with circular gastrular furrow,metagastrulation stage,nauplius stage,metaauplius stage,protozoea stage,zoea stage,metazoea stage;(3) In September,the water temperature range was from 19 ℃ to 30 ℃ and the average water temperature is 25.8 ℃,the time of embryonic development was 17~20 d.During the whole process,the accumulative water temperature of incubating was 453~516 ℃·d.However,in November,the water temperature range was from 4 ℃ to 10 ℃ and the average water temperature is 5.2 ℃.The time of embryonic development was 90~100 d.The accumulative water temperature of incubating was 462~520 ℃·d.

研究了克氏原螯虾(Procabarus clarkia)的胚胎发育过程,结果表明:(1)克氏原螯虾受精卵的颜色变化过程为棕色→棕色中夹杂着黄色→黄色中夹杂着黑色→黑色;(2)克氏原螯虾的胚胎发育过程共分12期:受精卵、卵裂期、囊胚期、原肠前期、出现半圆形内胚层沟、出现圆形内胚层沟、原肠后期、无节幼体前期、无节幼体后期、前蚤状幼体期、蚤状幼体期和后蚤状幼体期;(3)在9月份时,整个孵化期间的水温为19~30℃,平均水温为25.8℃,胚胎发育时间为17~20 d,在此期间孵化所需要的有效积温为453~516℃.d;而在11月份时,孵化期间的水温为4~10℃,平均水温5.2℃,胚胎发育时间为90~100 d,孵化所需要的有效积温为462~520℃.d。

 
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