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Any of a group of abundant rock-forming minerals occurring principally in igneous , plutonic, and some metamorphic rocks, and consisting of silicates of aluminum with potassium, sodium, calcium, and, rarely, barium.

&任何一组由大量岩石形成的矿物，主要存在于火成岩、深成岩以及一些变性的岩石中，含有钾、钠、钙及极少的钠的铝硅酸盐，地球的外层地壳中约百分之六十是长石。&

Any of a group of abundant rock-forming minerals occurring principally in igneous, plutonic, and some metamorphic rocks, and consisting of silicate s of aluminum with potassium, sodium, calcium, and, rarely, barium.

&任何一组由大量岩石形成的矿物，主要存在于火成岩、深成岩以及一些变性的岩石中，含有钾、钠、钙及极少的钠的铝硅酸盐，地球的外层地壳中约百分之六十是长石。&

Results :We report a case of bronchogenic cyst occurring in the left ventricle of a 2-year-old boy presenting with intermittent precordial pain, although the true diagnosis was missing preoperatively, complete excision of the cyst was achieved via a left anterolateral thoracotomy.

结果：1例罕见的左心室壁先天性支气管囊肿，术前未获明确诊断，但经左前外侧切口进行了完整切除，病理检查提示囊肿内壁通常由假复层柱状纤毛上皮覆盖，周围含有软骨和支气管黏膜腺体。

Disease occurring in epidemic form and featuring paroxysms of pain.

以流行形式发作的一种急性传染疾病特征是胸部疼痛。

The last three pandemics, occurring in 1918, 1957 and 1968, totally killed approximately 43 million people worldwide.

发生在上世纪的三次全球大流感(1918， 1957 及1968)共夺取约4千3百万人的生命。

Taking note of these thoughts improves your hindsight, prevents oversights from occurring and results in more breakthroughs in your thinking.

记下这些想法可以不断改进事后经验，避免发生疏忽，并且能够突破你的思维。

Collisions occurring after the first 64 octets are called "late collisions".

碰撞发生在前面的64位元组之后被称为延后碰撞。

For the same reason, the Goos-Hanchen shift is negative for both the TE and TM polarization incident waves as the result of the negative pennittivity and negative permeability nature of NIMs served as the rarer medium when total reflection occurring at a PIM-NIM interface.

对于正—负折射率介质界面处发生全反射时的古斯—汉森位移的研究发现当下半空间的光疏介质为介电常数和磁导率均为负的负折射率介质，不管是对于TE波还是TM入射波，在界面发生全反射时古斯—汉森位移均是负的。

A yellow or yellowish-green mineral, essentially WO3, often occurring with tungsten ores.

钨华一种黄色或黄绿色的矿物。主要是WO3，通常存在钨矿石中

The mechanism of vaporization , cavitation and water-hammer of drill fluid occurring on the suction stroke of drill pump is investigated.

对钻井泵吸入过程中钻井液产生汽化、汽蚀与水击现象的机理进行了探讨。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。