使无效

To cross one's fingers is a hand gesture used to superstitiously wish for good luck or to nullify a promise.

交叉手指是一个迷信的手势，用来祈祷好运或者使一个做出的誓言无效化。

The mortality of mice from tartar emetic was observed after concomitant injections of 5 testing drugs (procaine-HCl, sodium phenyl acetate, sodium αα'-dimercaptoadipate, sodium mercaptosuccinate and sodium thiosulfate).

二普鲁卡因、苯乙酸钠、aa′-二巯基己二酸钠及巯基丁二酸钠能使小鼠腹腔注射吐酒石急性及亚急性中毒死亡率明显地减低，而硫代硫酸钠则无效。

If any of these terms and conditions are invalid or unenforceable in any jurisdiction,they are,if possible,to be read down so as to be valid and enforceable.

如果任何条款和条件在某一司法管辖范围内是无效的或是无法执行的话，如有可能，则应对这些条款进行修改以使之有效或可执行。

The report determined that other approaches, including separating smokers from nonsmokers and ventilating buildings, are not effective.

报告确认，包括将吸烟者和不吸烟者分开和使建筑物通风的其它办法都是无效的。

Vitiate a claim,contract, theory

使权利要求、合同、理论无效。

In the tenth and last book of the Rig Veda some new themes are explored, but the Dasyus are still condemned for being "riteless, void of sense, inhuman, keeping alien laws," and Indra still urges the heroes to slay the enemies; his hand is prompt to rend and burn, O hero thunder-armed: as thou with thy companions didst destroy the whole of Sushna's brood.

& ( Rig Veda X：22)在第十次和最后一本书的钻机吠陀一些新的主题进行了探索，但仍然Dasyus谴责为& riteless ，无效的意义上来说，是不人道的，使外来的法律，&和Indra仍敦促英雄来杀死敌人，他的&一方面是迅速向雷德和烧伤，噢英雄雷声武装：因为你与你的同伴didst摧毁整个Sushna的沉思。

It was a fearfully dispiteous fact; the demon of illness attacked the humankind for another time, Xiaohong, an amiable young girl, passed away because of a paroxysmal illness, abruptly and abidingly.

这是一个极为残忍的实事，病魔的袭击使人类再次遭殃，年轻漂亮的小红患突发性疾病医治无效，匆促而永远地去了。

Applying dissipative structure theory into virtual enterprise management is managerial dissipativity.

这种情况会使虚拟企业逐渐向无效，无序和混乱的方向运行。

NOTE: Unfortunately, WordPress does not allow invalidly formatted e-mail addresses to be used in one's profile, so obfuscating your e-mail address there will not work.

注：不幸的是，WordPress不允许一个人的基本资料中使用无效格式的电子邮件地址，因此将你的使你的电子邮件地址格式变得模棱两可，这种方法可能不适用。

NOTE: Unfortunately, WordPress does not allow invalidly formatted e-mail addresses to be used in one's profile, so obfuscating your e-mail address there will not work.

注：不幸的是，WordPress不允许一个人的基本资料中使用无效格式的电子邮件地址，因此将使你的电子邮件地址格式变得模棱两可，这种方法可能不适用。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。