Expert knowledge in the codes and standards of respective markets.

And the hydrogen and oxygen isotopic compositions heavy waters are calculated by the high-resolution mass spectrometer.

利用高分辨率质谱峰相对强度,计算了重水中的氢氧同位素组成.

The instrument directs the secondary ions to a mass spectrometer that identifies their compositions.

仪器会将次级离子导向质谱仪,以?定其组成.

Mass spectrometer plays a key role of modern analytical technology.

质谱是现代分析技术皇冠上的明珠.

The maintenance experinence of old MAT isotope mass spectrometer has been discussed.

本文讨论了MAT同位素质谱计后期维护中的一些问题.

To measure this, archaeologists use a device called an accelerator mass-spectrometer.

为了检测这个, 考古学家们用了一种叫做加速器质谱计的仪器.

The uncertainty of certified values of reference material ( CRM ) for spectroscopic analysis method have been expounded.

论述了光谱分析用标准物质标准值的不确定度.

Miss tan is a chicken and she isn't willing to take risks.

谭小姐是个胆小鬼,她不愿意冒险.

His advice to me was to never take risks.

他对我的建议是永远别冒险.

They are usually adventurous and willing to take risks.

他们通常很大胆,也愿意冒险.

You must confront your fears and doubts and take risks again.

你必须面对你的恐惧和怀疑,并且再次冒险.

The willingness to take risks is our grasp of faith.

我们有信心,所以愿意承担风险.

This was not the time to take risks; he knew he should play it by the rule book.

这不是冒险的时候；他明白他应该照章办事。

It is impossible to give a satisfactory explanation for a potholer's motives.

对于洞穴勘探家的动机,不可能作出令人满意的解释.

I spend all morning checking numbers.

每天上午我要计算数字,核对帐目.

They spend all their savings on buy the shop.

他们花了所有的积蓄(存款)购买这家商店.

I had the folly to spend all I earned.

我好笨呀,花光了我的所获.

Do not spend all your money and leave stand-by.

不要花光你所有的钱,留点备用.

He confessed to her that he have spend all his money.

他向她承认他已经花掉所有的钱.

If we spend all that money, we shall be poor again.

假如我们将那笔钱全部花光, 我们又将变穷了.

A sperm cell develops from a sperm mother cell.

精细胞从精母细胞发育而成.