单旋扭控制，焊接操作简单。
把狄拉克方程分解成了两个单旋量的联立方程组。
The Dirac equation is decomposed into a pair of equations of two spinors.
针对常规单旋翼带尾桨直升机，讨论不同特性的入流模型在直升机数值仿真中的作用。
For the classical helicopter of single main rotor with tail rotor, the effect of inflow models with different characteristics on helicopter trim and digital simulation were discussed in this paper.
萤火虫项目是一种单旋翼直升机，使用美国混合动力(US Hybrid)公司制造的电池。
It's a single rotor helicopter powered by batteries made by US Hybrid.
以常规单旋翼带尾桨直升机为对象，讨论均匀与非均匀入流模型对直升机飞行数值仿真的影响。
For the current helicopter of single main rotor with tail rotor, the effect of inflow models with different characteristics on helicopter trim and digital simulation was discussed.
文中首先给出自动驾驶仪的调节规律，继而列出装备有自动驾驶仪的单旋翼带尾桨式直升机的无量纲运动方程。
At first, control law of the autopilot equipment was given, then the non-dimensional dynamic equations of the single rotor helicopter with autopilot equipment were derived.
深入探讨了单旋翼涵道风扇式无人直升机的动力学原理，结合其全量方程和线性化增量方程，推导出了其钟摆模态的数学表示。
Then the equation of helicopter pendulum is derived from the nonlinear differential equation and linear differential equation, with the principle of helicopter aerodynamics.
一个向量场,如果定义在单连通区域并且旋度为零，那么它就是一个梯度场，并且其上的线积分与路径无关。
OK, so, we've seen that if we have a vector field defined in a simply connected region, and its curl is zero, then it's a gradient field, and the line integral is path independent.
对高压旋喷桩从理论分析入手，结合工程施工实例，从承载力、桩径与桩身强度三个方面对单管旋喷承重桩进行了论述。
Combined with the theoretical analysis and construction example single tube high pressure rotating pile is discussed from three aspects: bearing capacity, diameter of pile and pile intensity.
两能级原子与外部环境(热库)相互作用时，采用非旋波近似，研究原子与热辐射场单光子和双光子作用过程。
The interaction of a two-level atom with a thermal radiation field for single-photon processes and two-photon processes without rotating wave approximation is analysed.
介绍了单头空气喷枪、空气静电喷枪、高速旋杯式静电喷枪各自的工作原理、施工特点及影响喷涂质量的工艺参数。
The working principles, characteristics and process parameters of single head air spray gun, air electrostatic spray gun and high-speed rotated cup type electrostatic spray gun were introduced.
对单粒子能级的计算和分析表明超重核的壳结构是形变和同位旋相关的。
The investigation of single-particle levels shows that the shell structure is deformed and isospin dependent.
第八名：贝尔uh - 1IROQUOIS(惠)是一种军用直升机搭载单涡轮轴发动机，具有双桨叶主旋翼和尾桨。
Number 8. BELL UH-1 IROQUOIS (HUEY) is a military helicopter powered by a single turboshaft engine, with a two-bladed main rotor and tail rotor.
内装式、单端面、单弹簧、非平衡型，带钩弹簧传动，弹簧旋向与轴旋向有关。
It is of built-in type, single seal face, single spring and unbalanced type with hook spring transmission, and the direction of rotation of spring depending on that of axis.
单、双级旋片式真空泵。
单、双级旋片式真空泵。
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