快变

By studying the image on the CCD camera, the profile line and the flaw can be detected and measured at the same time.

实验证明该结构简单，运行速度快，对直径变化在25~40之间的变径管道可以有效进行检测。

In the process, we are once again adding to the threat of global warming, be-cause methane has been one of the fastest-growing green-house gases, and is third only to carbon dioxide and water vapor in total volume, changing the chemistry of the upper atmosphere.

我们的这种行为更进一步地增加了地球变暖的危险，因为甲烷是一种形成速度极快韵温室效应气体，它在大气中的总含量仅次于二氧化碳和水蒸气，使高空大气层的化学成分都发生了变化。

The difference in yield, its components, basic characteristics such as mean size and bare tip length of cobs, plant height, base internode diameter, secondary root number per plant, LAI and DMW at the same measuring date, between the three treatments were insignificant respectively; the optimized fertilization made the three leaves around corn cob rather smaller, the cob leaf slightly thinner, a decrease of the cob leaf chlorophyll content at greater rate at the later stage, and dry matter accumulation amount slightly reduced from flowering to grain filling.

在优化施肥、秸秆还田优化施肥及传统施肥条件下，夏玉米穗长、穗粗、秃顶长、株高、基部伸长节间粗度、单株各层次生根条数、同一时期的叶面积指数和干物质积累量无显著性差异。在优化施肥条件下，夏玉米棒三叶总叶面积略微减少，穗位叶叶片略微变薄，生育后期穗位叶叶绿素含量下降稍快，吐丝-收获的干物质积累量略有下降。

The VVA0326- mutant carrying a deletion of the GGDEF domain displayed smaller colony morphology on LB plate while compared to the wild type. No difference in colony forming units was found indicating that growth rate is not likely a major factor to confer the phenotype of small colony. In addition, VVA0326- appeared to swim better than wild type bacteria on the swimming plate. VVA0326- grew better, while VVA0328- mutant, which carried a deletion of the EAL domain, grew worse than wild type when the bacteria were cultured on CAS plate at 30°C. This implied that changes in surface structures of the mutants affected the bacterial susceptibilities to HDTMA contained in CAS plate.

缺损了包含一个GGDEF功能区域的突变株 VVA0326-，培养在LB的洋菜胶上，呈现出较小的生长菌落，在测定单位菌落数的结果发现，VVA0326-在生长速度上，相较於野生株并没有不同，因此我们推论生长速率并不是造成菌落变小的主要因子，除此之外，VVA0326-在游泳的分析培养皿中游的比野生株快，在CAS的分析培养皿上，与野生株比较，VVA0326-有比较好的生长状态，而缺损了包含一个EAL功能区域的突变株VVA0328-，却有被抑制生长的现象，可能是因为突变株影响了表面的结构，进而改变了细菌对於HDTMA的敏感层度。

The results showed that the change of storage region had great effects on the property and sugar content of sweet sorghum. The change of sweet sorghum stalk with total sugar content about 58%(g/g dry sweet sorghum stalk) stored in the cold and dry Sonid Right Banner was as follows: rapid water loss and rapid dryness and sugar loss as 13%. When stored in Beijing, its change was as follows: sugar loss reached up to 25% and serious mildew occurred.

结果表明，区域选择的差异，对甜高粱秸秆的贮藏产生较大的影响，总糖约58%的甜高粱秸秆在低温、干燥的苏尼特右旗全年贮藏的物性变化为：失水、干燥速度快，总糖损失为13%；北京贮藏的甜高粱秸秆总糖损失达25%，霉变现象严重。

Meanwhile, improved suppression approach to nonstationary interference from multipath propagation is proposed by forming adaptive STAP in fast-time domain and maintaining slow-time statistical properties of the first order sea clutter output approximately unperturbed by filter fluctuation.

同时，针对多径传播产生的非平稳干扰，在保持海杂波主成分统计特性不变条件下，通过构造空域与快时间域的二维滤波器对非平稳干扰进行抑制。

An improved variable step-size self-adaptive harmonic detection method is proposed in this paper. The proposed method adopts a sliding integrator and then uses a fuzzy adjustor with self-adjustable factor to modify the step size, so it can obtain fast convergence speed and high steady precision at the same time.

在以往研究的基础上，提出了一种改进的变步长自适应谐波电流检测方法，它利用滑动积分器提取真正的跟踪误差，并采用带有自调整因子的模糊调整器来动态调整步长，能够保证谐波检测过程既具有较快的动态响应速度，又保持较小的稳态失调。

Based on one-cycle control having such merits as anti-perturbation of source, fast dynamic response, robustness, constant frequency, but when converter works in light load its power factor becomes very poor. The modified OCC was proposed, adopting feed-forward compensation control improves influence of power factor at light load, further study adopting independence saw tooth wave completely eliminate influence of power factor at light load.

基于单周期控制有源前端变换器具有抗电源扰动能力强、动态响应快、鲁棒性强、恒频控制等优点，但在轻载时变换器的功率因数变差，提出了改进OCC策略，采用前馈补偿控制改善轻载时对功率因数的影响，进一步研究采用独立的锯齿波电路完全消除轻载时对功率因数的影响，建立改进OCCAFE变换器的数学模型。

Rapids are created when rivers are on a steep gradient, making the water flow very fast, when the flow is constricted into a narrower channel, or where an obstruction such as a boulder interrupts the river, causing eddies and swirling currents.

当河流的坡度陡斜造成水流变快的时候，当水流被挤入更为狭窄的河道的时候，或是在河流被巨石之类的障碍物阻隔从而引起旋涡和涡流的地方，就会形成急流。

The price level, high speed, low-risk, high security, this is my company's commitment to you will never change.

价格平、速度快、风险低、安全高，这是我公司对您永远不变的承诺。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷