先在的

But we have to finish the plumbing before we can move on to any interior work.

但在我们开始建筑物内部建造之前我们要先完成水管的铺设工程。

The grain relative plumpness reduced rapidly at 5~10 day and rose slowly at 15~35 days after heading.

子粒相对充实度在整个灌浆期内呈先降后升的偏"Ⅴ"型动态曲线。

Shenyang Research Institute of Chemical Industry, Shenyang 110021, China Abstract: Spectrophotometric analysis showed that the peak absorbance for food dye of Allura Red and biological dye of Ponceau-G occurred at 501 and 510 nm. In sunlight after 2, 4, 6, 8, 10 hours, the decomposition rates of Allura Red and Ponceau G were between 2.4 to 5.8% and 3.4 to 10.8%, so they are stable in sunlight. The recovery rates on cottons and glasses were very high, so they are easily recoveried from targets. Further studies showed that the recovery rates of two dyes on the leaves of wheat, cabbage, cucumber and tomato were different, so it need previously determine the recovery rate of tracer on the target crop to adjust the result. Field experiment showed it was easy to measure the pesticide spray distribution of high volume spay and low volume spray to use Allura Red and Ponceau-G as tracers.

沈阳化工研究院，沈阳 110021 摘要：光谱分析表明，食品染色剂诱惑红和生物染色剂丽春红-G的最大吸收波长分别为501 nm和510 nm ；在连续2、4、6、8、10 h阳光照射下，分解率分别在2.4%~5.8%和3.4%~10.8%之间，见光稳定性良好；两种染色剂在棉花叶片和玻璃片上的洗脱回收率都很高，说明易于从靶标上洗脱下来；进一步测定表明，两种染色剂在小麦、甘蓝、黄瓜、番茄叶片上的洗脱回收率各不相同，所以对准备进行测试的作物应先做一次洗脱回收率试验，用以校正测试结果；田间应用表明，用两种染色剂做示踪剂，可以方便地测定常量喷雾和低容量喷雾过程中农药在麦田的沉积分布情况。

You can pay 100 de - posit and the balance within 60 day .

你可先支付100英镑的保证金，其余欠款可在60天之内支付。

Chloe had to sit in her pram while we were waiting to be taken to our table.

我们等工作人员引位的时候小克只能先坐在推车里忍会儿啦。

Every advance step in grace must be preceded by first apprehending it, and then a prayerful resolve to have it.

在这恩典里欲求长进，必先领悟它，并且继续不断以坚定的祷告才能得到。

In the first meaning we see the absolute pre-existence of the Logos.

在第一个意思里，我们看见道的绝对先存。

Teaching of medical ethics is a very important issue in medical education. In previous two year, we have successfully taught medical ethics in the fourth-year medical student with problem-based learning. The students also responded that its advisable if the course be extended into their premedical curriculum.

我们过去两年「以问题为导向学习」之教学方式进行医学生在临床见习时段的伦理教学，学生之反应甚佳，也建议其基础课程可提前於医预科时先上。

You should go first to a college preparatory school before your university dream come ture.

在你的大学梦成真之前，你得先去预备学校就读。

Before we scan the present landscape, it is worth slaying a couple of shibboleths.

在我们审视当前格局之前，有必要先来破除两个落伍的观点。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。