出现一次的

A high Ca zone was first observed in the animal pole right before the first cleavage, then it extended along the cleavage furrow and the Ca(superscript 2+) signal remained high in this region throughout the first cleavage.

在第一次卵裂过程中，斑马鱼胚胎的动物极顶端首先出现高钙斑，然后在分裂沟部位出现高浓度的钙信号，这一信号在卵裂过程中持续存在。

A high Ca2+ zone was first observed in the animal pole right before the first cleavage, then it extended along the cleavage furrow and the Ca2+ signal remained high in this region throughout the first cleavage.

在第一次卵裂过程中，斑马鱼胚胎的动物极顶端首先出现高钙斑，然后在分裂沟部位出现高浓度的钙信号，这一信号在卵裂过程中持续存在。

The managing technique of weed control in the utilized first field was established by using Pendimethalin combiningwith shallow intertilling and raining after germinating, artificial control for weeds that still survive and germinate was carried on once or twice, and other perennial weeds and Convolvulus arvensis were sprayed Butoxone along the alfalfa line.

利用一年种子田综合防除措施为：在苜蓿返青后，喷施土壤处理剂施田补，并在一周内浅中耕混土以防治一年生杂草，对仍存活杂草和后期出现的杂草进行人工除草一至二次；在苜蓿后期和收割后，可沿苜蓿行间喷洒2，4-D丁酯，以杀除田旋花及其他阔叶多年生杂草。

Finally, according to the characters that the inner and outer edge of double-layer eyelid are approximate parallel and the gray distribution changes sharply on the edge of inner eyelid, take the fitting curve acquired in first eyelid location as a template, and shift it down parallel to detect the position where gray value changes abruptly.

最后，根据双层眼睑的内外层边缘近似平行、而且在内层眼睑边缘处出现灰度跳变这一特点，以第一次定位所得拟合曲线为模版，平行下移搜索灰度跳变位置，完成对双层眼睑的二次定位。

This provocative thesis may overstate Israel's heft in Washington and understate its fear of Iran's nuclear ambitions. But it is hard to grumble with Mr Parsi's conclusion that detente between America and Iran, of the sort that might have come about in 2003, would in fact make both Israel and the Middle East as a whole very much safer.

这一观点具有很大的争议性，它可能夸大了以色列对于华盛顿的重要性，也低估了以色列对伊朗核问题的忧惧程度，但既然Parsi在书的结尾处指出，美国与伊朗之间的关系如果出现2003年那次可能出现的缓和，事实上对以色列乃至整个中东地区的安全都十分有利，那我们又何苦对他的这一论点斤斤计较呢？！

Bring about a pillow, the blind side that click the bedside and mattress contain one section battery, another a the section battery is also nearby in the bed, turning on a television, there is one personal dancing, he will point out a place finally, there is the star number manifestation, notice and wait film to broadcast to finish to click again 3 times, the safe-deposit box would appear!

把枕头掀起，点击床头和床垫的缝隙处有一节电池，另外一节电池也在床附近，打开电视，有一个人跳舞，最后他会指出一个地方，有星号显示，注意要等影片播放完再点击3次，保险箱才会出现！

Recently, Professor Liu Wen and his associates study the strong law of large numbers for Markov chain fields on trees. But for the nonhomogeneous Markov chain fields ,they only study the even-odd Markov chain and non-symmetric Markov chain. However, this article goes in the normal nonhono-geneous Markov chain fields and gets a class of limit theorems for the functions of two variables of finite nonhomogeneous Markov chain fields. Some limit theorems on the frequences of states and ordered state couples are obtained by several corollaries.

最近刘文教授及其合作者对树上的马氏链场的极限定理作了研究，对于非齐次马氏链场，仅对其中的奇偶马氏链场和非对称马氏链场作了研究，本文讨论了一般的非齐次马氏链场的极限性质，得到了关于Caylay树上有限非齐次马氏链场二元泛函的一类极限定理，作为推论得到了关于状态与状态序偶出现频率的极限定理。

When something like this shows up, ninety-nine times out of a hundred it's a speck of dust (one can't be too clean in the workplace) or a microscopic defect in the emulsion; but there is also the minuscule probability that it's a nova, and one has to make a report, subject to confirmation.

但凡出现这种事，一百次里有九十九次会发现一粒灰尘或者感光乳剂中有一个极小的缺陷；但也有微小的可能性，因为那是颗新星，人们必须作出报告确认下来。

Meanwhile, the sudden, a responsible person of the company said that the quality of their works are all complete, Formaldehyde has no part in the production of sodium bisulfate.

与此同时，对于突然出现的情况，该公司的一位负责人表示，自己厂的所有资质都齐全，不会出现有甲醛次硫酸氢钠加入生产的情况，该人士建议记者可以上他们网站查看资质许可证。

Meanwhile, the sudden, a responsible person of the company said that the quality of their works are all complete, Formaldehyde has no part in the production of sodium bisulfate. The reporter suggested that the website they can check the quality permit.

与此同时，对于突然出现的情况，该公司的一位负责人表示，自己厂的所有资质都齐全，不会出现有甲醛次硫酸氢钠加入生产的情况，该人士建议记者可以上他们网站查看资质许可证。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。