| 1. | The nose gear comes up first , then the main gear follows
机首的起落架首先收起，然后才是主起落架。 |
| 2. | The stability of self - excitation vibration in the main gearing train of the first rolling mill
初轧机主传动系统扭转自激振动的稳定性 |
| 3. | This design is inherently unstable because the plane ' s center of gravity is located behind the two main gear
造成此天生缺陷的原因，是因为两只主轮在重心的前面。 |
| 4. | The large machined main gear and standard 15 tooth pinion gear comprise the rotor head drive system on the synergy n9
大型机械齿轮、标准主要包括1915年牙杯头插齿传动系统的协同n9号 |
| 5. | Another critical factor when designing tricycle gear is to properly balance the load carried by the main gear versus the nosewheel
前三点起落架的另一个不利因素,设计时需要较精确的分配主轮与前轮的负荷 |
| 6. | The taildragger arrangement consists of two main gear units located near the center of gravity ( cg ) that support the majority of the plane ' s weight
后三点起落架，由两个在重心靠前位置的主轮支持大部分的飞机重量。 |
| 7. | The gear are usually relatively lightweight , and the two main gear can also be easily encased in streamlined fairings to produce low drag in flight
后三点起落架通常重量都比较轻。两支主轮子可以配置整流置用来减小飞行中的阻力。 |
| 8. | Once the the aircraft establishesits slightly nose - up attititude ( + 2 - 5 ) , which is actually the initial t / o attitude , let the student keep it utill the 2 main gears touch down , then slowly ease the nose gear down
建立好机头微微向上的正仰姿态后（ 2 - 5度） ，保持不变，直到后轮（主起落架）接地，然后再慢慢松杆，让前轮（前起落架）接地。 |
| 9. | The tuna fisheries catch was about 1 . 4 million tons in 2000 with the majority of tunas , especially skipjack , katsuwonus pelami , yellowfin tuna , thunnus dbacares , and bigeye tuna , thunnus obesus . the main gears were purse , gillnet and long - line in the fishery
产量140万吨，以金枪鱼类所占份额最高，主要金枪鱼渔获种类依次为鲣、黄鳍金枪鱼和大眼金枪鱼，主要渔业方式为金枪鱼围网、刺网及延绳钓。 |
