They draw their energy from sunlight (the reflected light exerts a small pressure on the sail, driving it forward) and therefore need no fuel.
它们利用太阳光获取能量(反射的阳光施加小量压力与太阳帆上，进而驱动其前进)，因而无需燃料。
Screw pump features are: smooth flow, small pressure fluctuation, imbibition, low noise, high efficiency, long service life and reliable operation.
螺杆泵特点是：流量平稳，压力脉动小，能够自吸，噪声低，效率高，使用寿命长，工作可靠。
Relief valve or vent valves permit a small pressure to be maintained on the vapor over the oil in the tank (except when the tank is being emptied).
卸压阀或通气阀使罐内油面上方的蒸汽保持微正压(油罐正在排空时除外)。
Due to its inherent characteristics in reducing low frequency, small pressure loss and simple geometry, the resonant silencer is being extensively used in engine induction noise reduction.
由于共振式消声器具有结构简单、良好的消除低频噪声的性能和流动损失小等优点，因此在发动机进气噪声的控制中得到了广泛的应用。
Propeller meters introduce small pressure losses .
螺旋浆式流量计的压力损失小。
And it has the merits of small pressure loss and long life.
它具有压力损失很小、寿命长等特点。
The water supply scheme using small pressure vessel combined with frequency converter was presented.
提出一种采用小气压罐与变频调速相结合的供水方案，并用单片机对供水系统进行控制。
The new principle to measure the gear whole error with small pressure angle involute worms is presented.
提出了小齿形角渐开线蜗杆测量齿轮整体误差的新原理，阐明了其优点，并进行了原理论证和参数设计计算。
Extend paper feed, small pressure on pull roller, minimize cardboard deformation and ensure the cardboard quality.
延伸送纸，拉纸辊压力小，减小纸板变形，确保纸板质量。
This article mainly introduces the cold mode trial and the result analysis about the spring nozzle with small pressure loss.
主要介绍了小压差弹簧喷嘴的冷态试验和结果分析。
High tooth gear has small module, small pressure Angle, and large addendum to enlarge the transverse contact ratio, improve gear strength, and reduce the noise.
细高齿齿轮是采用小模数、小压力角、大齿顶高来加大端面重合度，达到提高齿轮强度、降低噪声的目的。
Even the heat from the chunk of plutonium that ACTS as the spacecraft's battery produces a smidgen of thrust, and so does the small pressure of sunlight hitting the spacecraft.
就连充当探测器电池的那一大块钚散发的热量，也产生了少量的推力。照射到探测器上的太阳光产生的少量压力也一样。
Hydraulic systems use cartridge valve integrated control system, integrated cartridge valve control system has good sealing, flow capacity, small pressure loss characteristics etc.
液压系统选用插装阀集成控制系统，插装阀集成控制系统具有密封性好，通流能力大，压力损失小等特点。
Series 26a, 263a Small pressure regulators are general purpose pressure regulators for water and no. 2 fuel oil.
系列26a, 263a小型压力调节阀通常用于水和2号燃料油的压力调节。
The pilot sits in a small, pressure-resistant hull.
驾驶员坐在一个小型抗压舱中。
The pilot sits in a small, pressure-resistant hull.
驾驶员坐在一个小型抗压舱中。
应用推荐