副

The middle of the calendar or academic year.

他是抓业务的副校长。

My furniture, part of which I made myself —— and the rest cost me nothing of which I have not rendered an account —— consisted of a bed, a table, a desk, three chairs, a looking-glass three inches in diameter, a pair of tongs and andirons, a kettle, a skillet, and a frying-pan, a dipper, a wash-bowl, two knives and forks, three plates, one cup, one spoon, a jug for oil, a jug for molasses, and a japanned lamp.

我的家具，一部分是我自己做的——其余的没花多少钱，但我没有记账——包括一张床，一只桌子，三只凳子，一面直径三英寸的镜子，一把火钳和柴架，一只壶，一只长柄平底锅，一个煎锅，一只勺子，一只洗脸盆，两副刀叉，三只盘，一只杯子，一把调羹、一只油罐，和一只糖浆缸，还有一只上了日本油漆的灯。

The traditional catalyst used in acetal synthetic reaction is strong inorganic acid.

文摘：缩醛合成反应的传统催化剂为无机强酸，但由于副反应多、腐蚀性强和易污染环境等缺点，其使用受到限制。

Yield of acetate and reaction selection are raised, consumption of acetaldehyde are reduced, and by-products are also reduced.

实施后提高了醋酸收率和反应选择性，降低了乙醛消耗，减少了副产物，取得了良好的效果。

First, the speed of the reaction between mud acid and rock is very fast, the effective distance of acid is short, active acid can not reach deep formation.

首先，高温下常规土酸与地层矿物反应速度极快，酸液有效作用距离短，活性酸不能到达地层深部；其次，HF与铝硅酸盐的化学反应不是简单的一次反应，其副产物氟硅酸和氟铝化物还可与铝硅酸盐发生二次反应和三次反应，形成一系列不溶性的沉淀物，对储层造成严重伤害；第三，高温情况下酸液对井下管柱及工具腐蚀性很强，对缓蚀剂性能要求高。

The results showed that the glandular epithelial cells of serous acinus,the epithelial cells of all gland ducts and parasympathetic ganglion cells appeared GnRH positive in immunoreaction.The positive substance was distributed in the cytoplasma with negative nuclei.

结果显示，大鼠颌下腺的浆液性腺泡的上皮细胞，各级导管的上皮细胞及副交感神经节细胞均呈促性腺激素释放激素免疫反应阳性，阳性反应物质分布在胞质，胞核呈阴性反应。

"The ACIS system is the result of hundreds of hours of research and successful testing, meeting strict standards set by RotorWay International for all new product additions," said Brent Marshall, Vice President of RotorWay International.

"预报系统，是由于数百小时的研究和成功的测试，严格会议所定的标准rotorway国际为所有新产品的补充，"布伦特说，马歇尔，副总裁rotorway国际。

She asked , artfully , assuming an air of acquaintanceship with the matter

她狡猾地问道，装出一副知道内情的神气。

He said with rich acrid utterance to the assistant town clerk.

他用充满讥讽的口吻对副秘书长说。

Propylene oxide, propionaldehyde, acrolein and acetone are one of the most important chemical feedstocks.

近二十多年来，国内外研究者一直致力于流程简单、副产物少和无污染的生产C_3氧化产物的绿色催化工艺的研究。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新