head fraction
英 [hed ˈfrækʃn]
美 [hed ˈfrækʃn]
n. 头馏分
双语例句
- A pianist may have the most beautiful tunes in his head, but if he had only five keys on his piano he would never get more than a fraction of these tunes out.
一位钢琴家的脑袋中可能想到了一首美妙的曲子，但是如果他的钢琴上只有五个音键的话，他永远也只能演奏出这首曲子的一些破碎的片段。 - When a brief pulse of electricity is sent to the read/ write head it flips on a tiny electromagnet for a fraction of a second.
当一个简单的电脉冲被送到读写头，它会短时间内出现一个小的电磁。 - Capillary Chromatographic Analysis of Alkanes and Fatty Alcohols in the Secondary Unsaponifiable Head Fraction
毛细管色谱分析二级不皂化物前馏分中的脂肪醇和烷烃 - In order to obtain the pseudo-critical parameters of total well fluid, the samples of gas and liquid ( condensate) should be collected at well head respectively, which is used to measure the mole fraction of each component in the gas and liquid at the laboratory.
为了得到总井流体的拟临界参数，应当在井口分别取得气体和液体（凝析油）样品，并在实验室内测定气体和液体中每个成分的摩尔分量。 - The analysis adopts three-dimensional triple-nonlinear FEM, factors such as bolt pretension, interaction of bolt head, nut with plates, compressing between bolt shanks and holes, fraction between faying surfaces and welding connections.
分析采用三维三重非线性有限元，完全考虑了螺栓预拉力、螺栓头（帽）与板的相互作用、螺栓杆与孔壁的相互挤压作用、接触面的摩擦作用。