this is caused by different pressure drop from one trap to the other.

i had let my tools drop from my hands.

我放下手中的工具。

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happiness does not drop from the skies; it is to be created by our hands.

幸福不是从天上掉下来的，而要用双手去创造。

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there are many factors influencing hot die forging quality of turbine blade, such as material property, billet outline and size, die forging method and plan, die cavity structure and drop forging equipment, etc.

有许多因素影响汽轮机叶片的模锻生产质量，例如，材料性质、毛坯外形及尺寸、模锻方式及工艺、模腔结构与锻压设备等。

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investigation about wrinkle of eddy flow of drop forging

锻压涡流折纹的探讨

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application of oilless lubrication technique in cylinder of drop forging hammer

气缸无油润滑技术在模锻锤上的应用

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the numerical simulation of the metal flow in drop forging

模锻过程金属流动的数值模拟

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the photoelectric liquid drop sensor ( plds) is based on the optical fibers positioned inside the drop and the special capacitive sensor composed of the drop head and a cylindrical ring plate.

介绍一种用于液体特性研究的光电液滴传感器（PLDS），其原理是基于插入液滴内部的光纤，及由滴头和环形极板构成的电容传感器。

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to arch the neck and stimulate the cervical spine, lengthen the neck, drop the head back, lift the chin, and open the throat;

弯曲颈部并刺激颈椎，拉伸颈部，头向后仰，抬高下巴，打开喉咙；

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continue to lift your leg and drop the head and torso so they form a straight horizontal line from head to toe with the arms at your sides.

腿继续抬高，头和躯干下低，这样从头到脚就会形成一条水平直线，手臂放于身体两侧。

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slowly drop your head to the left, trying to touch your left ear to your left shoulder.

慢慢地把头偏向左边，试着让左耳接触左肩膀。

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slowly drop your head forward, letting the weight of the head gently stretch your neck.

慢慢地把头朝前低下，让头部重量轻轻地拉紧脖子。

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the way leading to occurrence of drop casualty accident from hanger is discovered and some preventive measures are put forward.

找出了导致吊架坠落伤亡事故发生的途径，并提出了一些预防措施。

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the relationship between the drying rate and drying air temperature, superficial air velocity, static bed height, pulsation frequency and perforation rate of screen were developed. also, the relationship of pressure drop with static bed height was obtained.

提出了干燥速率与干燥介质温度、气流表观速度、床层静止高度、气流脉动频率以及气流分布板开孔率之间的关系，同时也得出了床层压降与床层静止高度的关系。

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drop shots have height and a good arc.

小球需要高度和好的弧度。

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actual calculations have been done by using relevant physical parameters of crude oil in a certain large drop in height pipeline and results are reasonable.

并利用某一管线的大落差管段和有关原油的物性参数进行了计算，结果比较合理。

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flow regularities of crude oil in large drop in height pipeline

大落差管道中原油流动规律的研究

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in order to obtain the sand sample of good uniformity and high repeatability, a set of automatic sanding equipment is developed. a series of tests are conducted to study the relative density on the influence of sand flow rate and drop height with fujian standard sand.

为获得均匀性好、可重复性高的砂样，本文在以往研究成果的基础上，自主开发研制了一套自动撒砂设备，并针对福建标准砂进行了多组装样对比试验。

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this paper introduces the method of strengthening soft soil foundation by tamping the soft soil ground surface, using heavy ram according to a certain drop height, filling with building rubbish in the shallow pits formed by tamping and then tamping and compacting again.

本文介绍了用重锤按一定落距夯击软土地面，并在夯击形成的浅坑中充填建筑垃圾，经再次夯实挤密软土地基的方法。

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the current method of determining critical drop height has some defects as that the precision was bad and the confidence level was low.

针对现有的临界落高测定方法存在的估计精度差、可信程度低的缺点，建立了高置信度、高可靠度的安全撞击强度公式。

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hydraulic pressure test in case of long distance and large drop height in west to east gas pipeline

西气东输长距离大落差管道水压试验

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