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
- 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。 - Sedges having dense spikes of flowers and leaves reduced to basal sheaths.
莎草科的一个属，花排列成紧密的穗状花序，叶退化成基生的鞘。 - 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 lodging resistance and chemical component contents in culm and leaf sheaths were analyzed by using japonica rice cultivars with different lodging resistance during grain filling.
分析了不同抗倒类型的粳稻品种灌浆成熟过程中茎鞘抗倒伏性和化学成分含量的动态变化。 - Some cultural practices are required to keep these leaf sheaths active during ripening stage.
一些栽培技术要求在成熟期尽量保持叶鞘的活性。 - Tough sheaths push through the earth and do the backwork needed for the emergence, but the buds which then emerge in clusters are silken and delicate.
坚韧的叶鞘拱出了土壤，需要对突出体作辅助工作，但是随后出现在叶丛中的花蕾光润而娇嫩。 - He juxtaposed the magnificence of jacquard fabrics with the savage edge of animal skins, transformed into fitted sheaths.
他把富丽堂皇的提花织物和动物皮毛未经修饰的边拼在一起，做成合身的紧身服装。 - 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。 - Pathology.& Interstitial emphysema is characterized by air dissecting within the interstitium of the lung, typically in the peribronchovascular sheaths, interlobular septa, and visceral pleura.
其特征为空气夹在肺间质内，典型的位于血管支气管周围的鞘内、小叶间隔内和脏层胸膜内。 - 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。