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成直角

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In fact, a triangle formed for example, by the northern halves of two meridians and the section of the equator between them, will have two right angles at its base and an arbitrary angle at the top-a sum clearly greater than two right angles.

实际上,比如说,一个由北半球的两条子午线和它们之间的部分赤道组合成的三角形,将有两个直角作为底角,还有一个为任意角度的顶角-很显然它的内角之和比两个直角和要大。

For internal waves this is easily shown from (2) to be at right angles to the wavenumber vector k. In other words, energy propagates parallel to the wave crests, rather than at right angles as for surface waves!

这是内波容易证明的(2)在右边角波数矢量光换句话说,能源传播平行的波峰,而不是在作为面波成直角

The two vanes are at right Angles in plan, and each is either all shaded or all in sunlight

上、下两块觇板在一平面图上相交成直角,每块觇板全是阴暗的,或全被阳光照射。

Torpedo-shaped pontoons, at right angles to the big cylinders, extend from each side of the craft as aids to balance it.

鱼雷形浮筒,成直角的大气瓶,扩大从对方的工艺,作为艾滋病的平衡。

A sight on a quadrant or compass.

与水平面或者基准面成直角

Ceilings should be ac-cessible for cleaning, and ideally, the surface should he coved where ceilings and walls meet In many food-production areas, the ceiling must have thermal in-sulation This may be necessary either to prevent surface condensation or to reduce the energy costs of maintaining low environmental temperaturesWalls should also be insulated, to prevent surface condensation They should be free from rising damp and be protected, where appropriate, from damage by forklift trucks, by use of a guard rail In modern factories, there is always a coved surface where walls meet the floor It is also usual for there to be a coved surface where walls join at right angles.

天花板应该交cessible清洗、最理想他表面复岩下天花板和墙壁应满足许多粮食产区,天花要有热的绝缘要么这可能需要防止或者减少表面凝结能源维护成本低,对环境温度也应绝缘墙壁、应防止表面凝结他们免于受到保护和潮湿上涨,酌情从叉车损坏,用现代铁工厂门卫、凡事总有复岩面墙那里迎接地板也是平日没有可能凡参加面复岩墙成直角

During the New Moon (the 1st of a lunar month) and the Full Moon (the 15th of a lunar month) when the Earth, Moon, and Sun lie in a straight line, the solar and the lunar tides overlap and the sea-level pressure is lower than the mean at the Airport, because the tide-producing force induced by the Sun and Moon reaches maximum. On the other hand, during the First Quarter (the 7th day of a lunar month) and the Last Quarter (the 21st of a lunar month) the Sun-Earth's and the Moon-Earth's relative positions are perpendicular to each other with respect to Earth, the solar and the lunar tides interfere mutually, the Airport sea-level pressure is greater than the annual mean due to the tide-producing force reaching minimum.

松山机场在朔望月里,每逢阴历朔日或望日,受太阳与月球之引潮力(Tide-producing force)方向一致,太阳潮和太阴潮重叠影响,其全日和逐时平均海平面气压比年平均为低;而每逢上弦和下弦时,日地与月地的相对位置成直角,太阴潮和太阳潮相干扰,其全日和逐时平均海平面气压则比全年平均为高。

Nautical Set at right angles to the mast and keel. Used of the yards of a square-rigged ship.

与锚杆和船的龙骨成直角的,用于正方形帆船的桅杆

This consisted of a pillar on which were speed settings, the sight being fixed to an arm fitted at right angles from the top of the pillar which varied the line of sight according to the setting.

这个系统有一个带有速度设置的立柱,瞄准镜固定在一个臂上,这个臂与立柱成直角安装在立柱之上,立柱上刻有不同的线做设置的参照。

The man was of fine figure,swarthy,and stern in aspect;and he showed in profile a facial angle so slightly inclined as to be almost perpendicular.

男子身材魁梧,黑黝黝,严肃地样子,从侧面观擦,他的脸上线条僵硬,几乎成直角

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Do you know, i need you to come back

你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。