双线的例句（双线在句子中的用法）

• It was surprising when the alkali spectra showed unmistakable doublets. 当碱金属光谱显示出不容怀疑的双线结构时,是令人惊奇的.
• Connecting rod feeding mechanism , needle bar basting, looper hooking form parallel chain - stitch, which stitch is firmelastic. 连杆式送料机构, 针杆挑线 、 弯针勾线形成双线链式线迹, 线迹牢固且富有弹性.
• Side - by - side construction for easy hookup of left and right channels. 并排的双线非常便于左右声道的识别和连接.
• This paper discusses the general principle of bilinear system predictive control. 本文论述了双线性系统预测控制的一般原理、方法.
• A discussion is made of the optimization of a bilinear programming. 讨论了一类双线性规划的优化问题.
• Here he inaugurated the spectral theory of bilinear symmetric forms. 在这里他开创了双线性对称形式的光谱理论.
• A new backfire antenna fed by a bifilar backfire belix is described in this Paper. 本文提出一种用双线背射螺旋作馈源的新式背射天线.