只有一个

Later designs reduced the rigging, so that each bogie had a cylinder or, on modern trains, each wheel or even each block had its own brake cylinder.

之后的设计减少了制动连杆，每一个转向架只有一个制动缸，对于现代化的列车，每一个车轮，甚至每一块闸瓦都有自己的制动缸。

We wish this to be understood as meaning that in a given city, castle or town one church only shall be opened for the brethren of a particular order, as mentioned above, once in the year.

我们希望这可以理解为这意味著在一个特定的城市，城堡或城镇只有一个教会应开放供弟兄一个特定的顺序，如上所述，一次是在今年。

I am going to Gretna Green, and if you cannot guess with who, I shall think you a simpleton, for there is but one man in the world I love, and he is an angel.

我要到格利那草场去。如果你猜不着我是跟谁一起去，那我真要把你看成一个大傻瓜，因为这世界上只有一个男人是我心爱的，他真是一个天使。

Singletons ensure that a class only has one instance, and provide a global point of access to it.

单身确保一个类只有一个实例，并提供一个访问它的全球问题。

The effectiveness of these methods is illustrated by a fuzzy optimal design of the three-bar truss.

在多目标优化时，希望所有目标值均越小越好，但一般情况下又不存在这样的解，所以只能选择非劣解，如果只有一个，那么它就是最优解，如不只一个，那么设计者可以根据具体情况和自己经验选取一个&满意解&。

Result shows that the MOD is significantly related to the atmospheric features in the previous winter with strong North Atlantic oscillation for early Meiyu onset and v.v..

研究结果表明江淮入梅的早晚与前期冬季北半球大型环流存在显著的相关：入梅早的年份，其前期冬季北大西洋涛动强，北半球只有一个强的极涡并位于格陵兰上空，相应东亚大槽弱；入梅晚的年份，则其前冬环流表现为，北大西洋涛动弱，北半球存在两个极涡，其中一个仍然位于格陵兰上空，而另一个则位于西伯利亚上空，相应东亚大槽较常年偏强。

Result shows that the MOD is significantly related to the atmospheric features in the previous winter with strong North Atlantic Oscillation for early Meiyu onset and v.v..

研究结果表明江淮入梅的早晚与前期冬季北半球大型环流存在显著的相关：入梅早的年份，其前期冬季北大西洋涛动强，北半球只有一个强的极涡并位于格陵兰上空，东亚大槽弱；入梅晚的年份，则其前期冬季环流表现为，北大西洋涛动弱，北半球存在两个极涡，其中一个仍然位于格陵兰上空，而另一个则位于西伯利亚上空，东亚大槽较常年强。

The pelvic or pectoral girdle .Now the house was going to rack and ruin. Aunt Annabel patiently inquired how it could be expected to do anything else, with only a cook-housekeeper, one maid, and a daily.

现在我这栋房子管理十分混乱，安纳贝尔婶婶耐心地征询大家，在只有一个厨师兼管家，一个女仆与一个朝来晚去的女工的情况下，怎么打理好房子。

Deuterium, a natural isotope of heavy hydrogen, having one proton and on neutron, whereas normal hydrogen has one proton and zero neutrons, could be used routinely.

重水中的天然同位素氘具有一个质子一个中子，它不同于正常的氢只有一个质子没有中子，可以常规应用。

A successions of words, rapidly appearing and disappearing - just so that an attentive viewer can grasp the meaning.

快速地，一个一个字连着显示又消失，只有一个认真观看的观众才能跟上字句显示的速度。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。