介子

Archaeologists and nuclear physicists are working together to measure the passage of muons, subatomic particles from deep space, through the 2,000-year-old Pyramid of the Sun to discover the mysteries of the pre-Aztec Teotihuacan civilisation.

目前，考古学家和核物理学家们正在利用宇宙射线探测器的介子束在太阳金字塔底深处进行勘测，希望能解开这座金字塔的秘密以了解扑朔迷离的狄奥提瓦康古城。

In this thesis, we review briefly the weak decays of the heavy mesons.

本文首先综述了重味介子弱衰变的主要思想。

B decays provide an ideal place for studying the origin of CP vio-l...

B介子衰变提供了研究CP破坏起源的一个理想地方。

Outside the cells, it moonlights as autocrine mobility factor involved in cancer metastasis, neurolukin supporting the survival of specific neurons, and maturation factor mediating the differentiation of myeloid leukemic HL-60 cells to terminal monocytic cells.

在细胞外，PGI是一种肿瘤自泌移动因子和肿瘤转移有关，也是一种神经白介素和促分化成熟介子，分别具有支持脊髓及感觉神经元存活的能力和诱导白血病细胞HL-60成为单核白血球。

Shall clean recessing and printing places' aluminum scrap or sharp edges when processing the toothed aluminum bracket and ensure a good match with washer.

4.2.15有牙铝码加工时切除位或啤孔位铝屑或批锋清理干净，保证与有牙介子之间的正常配合，注意啤长孔可能导致的变形。

It was a cornerstone of the quantum revolution in physics of the twenties but reemerged in the eighties as a powerful tool in the study of spectra and decay properties of mesons and baryons.

这是一个在20年代的量子物理学革命的基石，但作为一个光谱中的介子和重子和衰变性质研究的有力工具80年代重新出现。

The atom drifts to where it wants to go, said Dr. Landua, namely the wall where its components will annihilate with their opposite numbers in a characteristic pattern: the antiproton into a spray of lighter particles called pions, and the positron producing a flash of gamma rays.

Landua 博士说，&原子随意漂流&，即组成的墙壁会消灭以相反特性存在的粒子数：反质子进入比较轻的称作介子的粒子雾里，而正电子产生伽马射线闪光。

Meson: Any member of a family of subatomic particle s composed of a quark and an antiquark.

介子：由一个夸克和一个反夸克组成的亚原子粒子族。

Meson: Any member of a family of subatomic particles composed of a quark and an antiquark.

介子：由一个夸克和一个反夸克组成的亚原子粒子族。

Meson: Any member of a family of subatomic particles compose d of a quark and an antiquark.

介子：由一个夸克和一个反夸克组成的亚原子粒子族。

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％。