铅的

The results showed that memberane permeability increased,POD and SOD activity and soluble protein content decreased in the Raphanus L.seedlings under 300 mg/L lead stress.

结果表明：在300 mg/L铅胁迫浓度下萝卜芽苗菜的膜透性明显增大，过氧化物酶活性、超氧化物歧化酶活性、可溶性蛋白含量明显下降。

β-Cyclodextrin with the 6-hydroxyls protected by dimethyl-tert- butylsilyl was selectively oxidized by lead tetraacetate. After the silyl groups were removed off by boron fluoride-etherate, mono-2,3- dialdehydro-β-cyclodextrin as a cuniform molecule could be constructed.

用四醋酸铅将七元（6-O-二甲基叔丁基硅基）-β-环糊精选择氧化、并用三氟化硼乙醚脱硅基保护基后，再经分离、纯化，可获得具有&楔筒状&空腔的单-2， 3-二醛基-β-环糊精。

Company specializing in electronic smart lead-free soldering process and the promotion of Static and equipment.

公司专业从事电子智能无铅焊接制程和防静电产品及设备的推广。

To this end, I provide a new high in low-end lead-free wave soldering at the same time.

为此，我公司在提供全新高低端无铅波峰焊的同时。

The content of the lead in hydride occurrence-atomic fluorescence spectrographic methods of measuring fertilizer is discussed in this paper.

研究了氢化物发生—原子荧光光谱法测定肥料中的铅含量，选择了最佳检测条件。线性范围0μg/L-200.0μg/L，回收率为

Imagine a giant molecular claw reaching out and grabbing a lead molecule and then spiriting it away for excretion.

试想象一下：一个由分子构成的巨型爪子，伸出去抓住铅分子，然后神秘地将其带走并排泄掉。

Its are main the task is to produce welding flux kind product -- the recipe dissolvent that will come from French flounder and metal (lead - stannic alloy or stannum - silver-colored - copper alloy) mix and become, in order to passes drill rod solder will yuan parts of an apparatus is fixed in printed circuit board on.

其首要任务是出产焊剂类产物——将从法国辗转而来的配方溶剂和金属(铅-锡合金或者锡-银-铜合金)同化而成，用以经由过程钎焊将元器件固定在印刷电路板上。

The pulse laser photoacoustic technology was applied to study the initiated chemical reaction process of lead styphnate at different laser energy.

用脉冲激光光声技术研究在不同激光能量水平下斯蒂酚酸铅被激光引爆的化学反应过程。

Sodium formaldehyde sulfoxylate can break down into formaldehyde and sulfur dioxide in process of using.

吊白块在使用过程中会分解出甲醛和二氧化硫，先用乙酸铅试纸法[1]对样品进行定性筛选，可疑样品再用分光光度法[2]测量甲醛的含量，判断是否含有吊白块。

The aluminum for light-grid material in lead-acid batteries was electroplated with Pb-Sn alloy from sulphamate bath,and the opitimum technology condition and electrolyte composition were determined.

利用氨基磺酸盐镀液在铝合金基体上电镀铅-锡合金作为铅酸蓄电池的轻型板栅材料，确定了最佳电镀工艺条件和镀液配方。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷