平整的织物需要使用不卷缩的纱线, 而对于绉织物和要求产生某些花式效应时, 使用卷缩纱线是较合适的. Smooth fabrics require balanced yarns, but for crepe and textured effects, unbalanced yarns are desirable.
The savage civil war there could be a portent of what's to come in the rest of the region.那里发生的野蛮内战可能预示这一地区其他地方将会发生什么。One encouraging portent is that more people are using the railway network.使用铁路运输线的人数在上升,这是个好兆头.Be...
Along these lines, Lucent also has developed a prototype voice - activated World Wide Web browser.沿这种思路, Lucent( 朗迅)公司也开发了语音激励的万维网浏览器原型....the first prototype aircraft.第一架飞机样机To prototype, the Xunwu has a copulating of t...
For a system, Hamiltonian is invariant under any translation of spatial coordinates.对于一体系, 哈密算符在任何空间坐标变换下是不变的.In other words, The Hermiticity of a matrix is invariant under unitary transformations.换言之, 矩阵的厄密性在幺正变换下保持不变.O...
The roots transmit moisture and nutrient to the trunk and branches.根将水分和养料输送到干和枝.Magnesium is the nutrient element in plant growth.镁是植物生长的营养要素.There is still great interest in boron as an essential plant nutrient.迄今硼作为植物...