constrictions
英 [kənˈstrɪkʃənz]
美 [kənˈstrɪkʃənz]
n. 规定; 限制; 制约
constriction的复数
柯林斯词典
双语例句
- The Ag-AS technique reveals clearly silver stained spots at the secondary constrictions of two pairs of autosomes 1 and 2. In addition, the spontaneous frequencies of the sister chromatid exchanges ( SCE) of this species are calculated. The average SCE number er cell is 6.2.
此外，本文还测定了该种动物姐妹染色单体的交换频率（SCE），其平均值为每细胞6.2。 - Yet one day, she decided to leap out the constrictions of her world.
可是有一天，她决定要跳出这个世界的羁绊。 - But some abnormal phenomena were also observed in few cells, such as unequal separation, lagging chromosomes, translocation rings, chromosome bridges, multi constrictions and multivalent chromosomes, etc.
但个别杂种花粉母细胞中也存在减数分裂异常现象，如不均等分离、落后染色体、染色体桥、多着丝粒体、易位环及多价体等。 - Influence on dorsal root ganglion after acute and severe cauda equina constrictions and intrathecal injection of brain-derived neurotrophic factor in experimental dogs
急性重度狗马尾束缢和鞘内注射脑源性神经生长因子对背根神经节的影响 - Meanwhile, the phenomena of constant accusations and accusatory school had developed greatly in South China with Jiangxi region as the nucleus, but they suffered many constrictions under the double oppressions from both the government and the families.
尽管宋代民间诉讼虽出现了以江西为核心的南方地区多讼和讼学不断发展的现象，但在国法和家法的双重压力下，其发展受到重重限制。 - In endothelium-denuded rat aorta, it's tone at resting state, excitation of muscle P 2 x receptors by ATP induced endothelium-independent constrictions.
去除内皮细胞的大鼠离体主动脉标本处于静息状态时，ATP作用于血管平滑肌细胞的P2x受体，诱发非内皮依赖性血管收缩反应。 - In two native groups of Gansu white pig, the frequencies of secondary constrictions in 8th chromosomes in Linxia group were higher than in Wuwei group.
在甘肃白猪的两大地方类群中，临夏类群第8对染色体上次缢痕出现的频率高于武威类群。 - Both ends are closed off by sphincters ( muscular constrictions), which relax to let food through and close to keep it from backing up.
两端均为括约肌所关闭；食物通过括约肌进入食道后，该括约肌立即关闭以防食物向上回流。 - Backwater at bridge constrictions of broad-shallow and shifting channels in Xinjiang
新疆宽浅变迁河流桥位河段壅水研究 - They differ from each other both in chromosome shapes and the positions of secondary constrictions.
但是染色体形态，如臂比值和次缢痕的位置和数目存在一定差异。