vacuum extractor for artificial abortion

my friend's ob used a vacuum extractor to help deliver her baby. is that the same as forceps?

我的朋友在生产时用到了真空吸引，这和产钳一样吗？

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the vacuum extractor is a plastic cup placed on the baby's head, and it uses gentle suction to help guide him or her out of the birth canal.

真空吸引是用一个塑料杯放在婴儿的头顶，并使用柔和的吸力把婴儿拉出来。

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pathogens for the control of pests

防治虫害的病菌

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it is since the industrial revolution, industry has been being fundamental power of advancement. of a country even the society.

工业乃是一个国家乃至却社会进步的根本动力，从工业革命以来更是如此。

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our fundamental power will not be much different.

我们的根本国力不会发生太大的改变。

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a teacher, the direct organizer and executor in education, is the most fundamental power and guarantee.

教师是教育活动直接的组织者和实施者，是教育最基本的力量和保证。

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reform and opening is the fundamental power of chinese social revolution.

中国社会之巨变，根本的动力在于改革开放。

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practice embodies the fundamental power, people who practice the industry to promote industry development is the fundamental power.

实践体现人的根本力量，人的产业实践是推动产业发展的根本力量。

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the backbone of the backbone, is the basic orientation of the power lever is the wrong direction against the fundamental power base.

这些中坚的骨干力量，是杠杆的基本导向力量，也是反对错误方向的基本力量基础。

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the fundamental power to promote the increasing development for a country is to own innovative talents.

对一个国家来说，其发展壮大不竭的根本动力关键在于拥有创新型人才。

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nonexistence of the stable quasi-harmonic map

稳定拟调和映照的不存在性

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regularity for weakly stationary solutions to inhomogeneous p-harmonic map equations

非齐次p-调和映射方程组弱驻点解的正则性

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harmonic method for lettering on surface

实现曲面刻字的调和方法

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second harmonic method of measurement of rebar corrosion in non-linear case

非线性情况下钢筋锈蚀测量的二次谐波方法

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a multi-harmonic method for studying effects of mistuning on resonant features of bladed disks with dry friction damping

多谐波法研究带有叶间干摩擦阻尼失谐叶盘系统的共振特性

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application of non-sinusoidal oscillation technology of slab cc mould

板坯连铸结晶器非正弦振动技术的应用

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a non-sinusoidal oscillation waveform for continuous casting mould

一种连铸结晶器非正弦振动波形

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non-sinusoidal oscillation system of electro-hydraulic continuous casting mold

电液连铸结晶器非正弦振动系统

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the construction and limit of oscillation parameters on non-sinusoidal oscillation of mold

结晶器非正弦振动参数的构建及取值限度

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determination of non-sinusoidal oscillation amplitude for casting mold

连铸结晶器非正弦振动振幅的确定

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