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
- 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。 - Failure to observe this can lead to constrictions in the area of the supply and return lines.
如果不遵守此规则，则可能导致供应管和回流管区域收缩。 - 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。 - 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。 - The Constrictions of Speech Acts by Culture Rules
谈文化规则对日语言语行为交际的制约 - Cellular growth, constrictions function and free Ca 2+ in cultured pulmonary artery smooth muscle cells were measured by the methods of MCT, morphometry and calcium fluorescent probe Fura 2-Am.
采用MTT法和测微网及钙荧光指示剂Fura2／Am测定培养的肺动脉平滑肌细胞生长情况和收缩功能以及细胞内游离Ca2＋浓度。 - Rattling or creaking noises can be heard while driving due to tolerances and constrictions around the glove box.
驾驶时能够听到卡嗒声或叽嘎噪音是由于杂物盒周围存在公差并有收缩现象。 - 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。 - 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。 - 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。