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Parts such as these are prone to twist on a magnet during cutting operations, especially when cutting forces are directed parallel to the face of the magnet (which occurs when milling about a part's periphery), versus down toward the magnet.

部件， 如这些很容易扭曲的磁铁切割行动期间，尤其是当切削力是针对平行面对磁铁（其中发生在铣削关于部分周边），与下跌对磁体。

As a primary disease, porcine paratyphoid only occurs in pigs under 6 months of age and mainly in piglet s around the time of weaning.

猪副伤寒作为原发性疾病，仅发生在6月龄以下，主要是断奶前后的仔猪。

As a primary disease, porcine paratyphoid only occurs in pig s under 6 months of age and mainly in pig lets around the time of weaning.

猪副伤寒作为原发性疾病，仅发生在6月龄以下，主要是断奶前后的仔猪。

As a primary disease, porc in e paratyphoid only occurs in pigs under 6 months of age and ma in ly in piglets around the time of wean in g.

猪副伤寒作为原发性疾病，仅发生在6月龄以下，主要是断奶前后的仔猪。

Objective To investigate the paregoric effects of butorphanol when the errhysis occurs inside the epidural catheter during continuous epidural anesthesia.

目的 探讨在连续硬膜外麻醉中，硬膜外导管内渗血时，应用布托啡诺镇痛的效果。

The fullest and perhaps earliest description of the tradition occurs in Chaucer's Parlement of Foules, composed around 1380, which takes place "on Seynt Valentynes day,/Whan every foul cometh there to chese his make ."

关于这种传统的最完整可能也是最早的描述出现在乔叟的 Parlement of Foules 中，作于1380年左右，发生在"圣瓦伦丁节/当每个火鸡都来到这里它的配偶"

The fullest and perhaps earliest description of the tradition occurs in Chaucer's Parlement of Foules, composed around 1380, which takes place 搊n Seynt Valentynes day,/Whan every foul cometh there to chese his make .?

关于这种传统的最完整可能也是最早的描述出现在乔叟的 Parlement of Foules中，作于1380年左右，发生在"圣瓦伦丁节/当每个火鸡都来到这里它的配偶"

Parthenogenesis occurs naturally in some species, including invertebrates and lower plants. It happens more rarely in some vertebrates.

某些生物天生具有单性生殖的能力，包括无脊椎动物和低等植物，但单性生殖在脊椎动物中较为罕见。

When the partial pressure at a given temperature exceeds a certain level of saturation, then condensation occurs.

当局部的压力，在某一特定温度超过一定水平的饱和度，然后凝结发生。

In order to solve the problem that matrix A often occurs irreversible when shape function is calculated by using traditional element free Galerkin method, the orthogonal function with the weight function is utilized in the paper. And partition of unity quadrature technique is employed and so a truly "meshless" method is realized.

针对传统无网格伽辽金方法在构造形函数时，矩阵A容易出现不可逆的弊端，采用带权正交基函数构造形函数，在积分方案上采用单位分解积分方法，从而实现了真正的"无网格"。

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。