sheaths
英 [ʃiːðz]
美 [ʃiθs]
n. (刀、剑等的)鞘; (工具的)套; 护套; 护层; 护皮; 紧身连衣裙
sheath的第三人称单数和复数
柯林斯词典
- (刀、剑的)鞘，套
Asheathis a covering for the blade of a knife. - 保险套;避孕套
Asheathis a rubber covering for a man's penis and is used during sex as a contraceptive or as a protection against disease.
双语例句
- Ovicidal trait in DH lines was phenotyped by necrotic symptoms on the leaf sheaths due to ovicidal response.
DH株系中的杀卵特性是通过叶鞘上杀卵反应产生的坏死症状表现的。 - Histochemical analysis and in situ hybridization showed that the ACO1 expression was localized in the basal parts of leaf sheaths immediately above nodes or the lower parts of elongating internodes.
组织化学分析和原位杂交结果表明ACO1在伸长中的节间底部仅靠近节的叶鞘基部表达量很高。 - In short, Knox's proposal was ill conceived and naively made. It does not show sheaths around the vascular bundles.
总而言之，诺克斯的建议考虑不周，显示幼稚。它并没有显示出在维管束周围的鞘状构造。 - The proportion of N was significantly higher in the culms and sheaths, whereas significantly lower in the grains, under dry cultivation than under SC.
旱种稻成熟期茎鞘中的N素分配显著高于对照，籽粒显著低于对照，品种间叶片有所不同。 - Even the knives seemed loosened in their sheaths, impatient for the bloody and merciless work to begin.
甚至他们好象迫不及待地连匕首都出鞘了，单等这件血腥而残酷的行动开始了。 - Mechanical and physical performances of the sheaths meet related standards;
护套的机械物理性能满足相关标准的要求； - It does not show sheaths around the vascular bundles. Procambium ( procambial strand) The layer of cells that gives rise to the vascular tissue.
它并没有显示出在维管束周围的鞘状构造。原形成层（原形成层束）：形成维管组织的一层细胞。 - Specifically, the insulating myelin sheaths around the axons of neurons the parts responsible for transmitting information to other neurons get smaller.
具体来说，神经元轴突周围的绝缘性髓鞘――负责将信息传送至其他神经元的部分――变小了。 - Since the filaments that connect distant nerve cells are surrounded by fatty sheaths which restrict the movement of water, such molecules tend to move along a filament rather than out of it.
由于连接神经细胞的花丝被脂肪硝所包围，而脂肪硝会限制水分子的运动，所以水分子会沿着花丝运动。 - The utility model relates to an ice and snow shovel for road surface, comprising shovels, shovel sheaths, springs and a connecting plate.
本实用新型为一种路面冰雪铲除装置，包括换锹、锹套、弹簧、连接板。