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The SmI2-mediated reductions of ketones,imines and α,β-unsaturated esters have been shown to be instantaneous in the presence of H2O,an amine and in THF.

在水、胺以及四氢呋喃存在下二碘化钐参与的还原酮、亚胺以及α，β不饱和酯的反应能够在瞬间完成。

On the basis of instantaneous forced analysis to short circuit of power transformer and numerical value calculation using low voltage impulse analysis, the paper presents the essentiality of winding distortion after short circuit of power transformer. By contrasting the three main ways of the world such as low-voltage impulse、 short circuit impedance analysis and frequency response analysis , FRA is adopted for distortion testing. Then we design a new testing instrument of transformer winding distortion—testing system of transformer winding distortion.

本文首先在对电力变压器短路时的瞬时受力分析及所受电磁力的有限元法的数值计算的基础上，论证了电力变压器短路以后进行绕组变形测试的必要性；然后通过比较的方法对目前国内外主要使用的三种方法：低压脉冲法、短路阻抗法和频率响应法，进行了一一对比，并根据对比结果，确定在本课题中使用频响法；最后在理论研究的基础上，设计出了一种新型的变压器绕组变形测试仪——电力变压器绕组变形测试系统。

This dissertation focuses on the research of the instantaneous feedback technology of PWM inverters.

因此，发展了多种多样的逆变器波形控制技术。

The average concentration is 244 μg/ m3 and 171 μg/ m3, respectively, and the background concentration is 166 μg/ m3 and 110 μg/ m3, respectively. In the iron foundry plant, when the middle frequency furnace opened, the instantaneous PM10 and PM2.5 mass concentrations increased significantly to 10 mg/ m3 and 7 mg/ m3, respectively.

铸造厂中导致PM10与PM2.5微粒质量浓度上升的主要事件为中周波融解炉的开启，瞬间最高浓度分别可达到10 mg/ m3 与7 mg/ m3，平均浓度分别约为615 μg/ m3 与479μg/ m3，背景浓度分别约为84 μg/ m3 与61 μg/ m3。

This paper studied the effect of Instantaneous High Pressure treatment on chemical quality of pear juice through Ascorbic acid,amino nitrogen,total sugar and total acid of four aspects.

通过还原型Vc、氨基态氮、总糖和总酸4个方面研究了瞬时高压作用对早酥梨汁化学品质的影响。

The paper studied the effect of Instantaneous High Pressuretreatment on chemical quality of pear juice through Ascorbic acid,amino nitrogen,total sugar and total acid of four aspects.

通过还原型VitC、氨基态氮、总糖和总酸四个方面研究了瞬时高压作用对早酥梨汁化学品质的影响。

Takes off starts the instantaneous landing angle not to be unstable, creates this kind of phenomenon the reason is because athletes leg department strength is bad, easy to cause to take off the leg cushion scope oversized, the cause horizontal kinetic energy cannot the very good transformation for take off the leg extensor elastic potential energy.

同时在起跳开始瞬间着地角不稳定，这是由于运动员的腿部力量较差所引起的，容易导致起跳腿缓冲幅度过大，致使水平动能不能很好的转化为起跳腿的伸肌的弹性势能。

The working principle: 1, with the membrane machine, Slitter linkage: in the production process, from bits and pieces of the film strip was placed in the feed granulating machine body, the binder device, irregular bits and pieces have been pressure neatly into the pattern with the ribbon, and then by the high-speed rotary cutting blade alloy materials for the flaky particles, instantaneous complete recovery.

工作原理：1、与制膜机、分切机联动：在生产过程中，排出的带状薄膜边角料立即被送入造粒机的进料机构，经压料装置，不规则的边角料被压成整齐带花纹的带状，再由高速旋转合金刀片裁切为片状颗粒材料，回收瞬间完成。2、单独使用：将分切下的边料有序的卷到纸芯上，成卷地送到造粒机进行造粒。

In the boreal summer, there are two STH ridge lines in mid-Pacific separated by the mid-Pacific trough, of which the north part (call as mid-Pacific STH ridge line) is joined with the west Pacific STH, and the south is belonged to the North America STH. The structure of them is winter pattern that the ridge axis slopes southward against height. Litter differences lie in vertical circulation structure of the steady and instantaneous mid-Pacific STH, and descent flow exists around ridge axis.

北半球夏季，中太平洋地区中高层存在双副高脊线，其中偏北的一条与西太平洋副高相连，偏南的一条系北美副高西伸脊线，其间为洋中槽；副高结构表现为冬季型，即高压脊轴随高度向南倾斜；中太平洋副高垂直环流的定常结构与瞬时结构差别不大，副高脊轴附近均有下沉气流存在。

The special screw is manufactured with the molding method and non-instantaneous envelope method on the numerical control millers generally.

异形螺杆的加工一般采用成型法及无瞬心包络铣削方法在专用数控铣床上进行。

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％。