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
- 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。 - 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 - 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。 - Its backwater, due to bridge constrictions, is different from that of alluvial channels.
建桥后，由于桥位断面压缩而导致的壅水与一般冲积河流不同。 - 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。 - 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。 - If there are real constrictions on oil supply, as now appears to be the case, and if those are intensified by conflict in Iran, the knock-on effects for the economy, and markets could be severe.
如果石油供应确实紧张（现在似乎就是这种情况），如果伊朗冲突导致供应紧张形势恶化，那么对于经济和市场而言，其连锁效应可能是巨大的。 - Besides, there are many constructions, roads and underground pipelines around the foundation pit, which demands the safety for not only the foundation pit itself but also all the peripheral constrictions and structures.
此外，基坑周围通常存在建筑物、道路或地下室管线等各种构筑物，这就要求既要保护基坑自身安全，又要保护基坑周边构筑物的安全。