粗体

The influence of Pb-contamination on microstructure and shear strength of SnAg/Cu and SnSb/Cu solder joints prepared by SMT were studied by mixing eutectic SnPb solder paste into leadfree solder pastes.

与常用的Sn62Pb36Ag2焊点对比，Sn96.5Ag3.5和Sn95Sb5焊点在高温时效过程中组织结构更稳定，界面金属间化合物的生长速率和体焊料的粗化程度均低于SnPbAg焊点；同时，焊点的剪切强度较高。

At first, the broth was acidified, then centrifuged to get mycelia, which was heated and powdered; finally we use acetic ether to soak the powder. After that, the phase of acetic ether was washed using the solution of ammonium sulfate and the solution of ethanedioic acid, then concentrated to gain pulps. It was crystallized at 4℃.The coarse crystals was decolorized by activated carbons, the pure needle crystal of lovastatin was obtained.

发酵液经酸化处理后，离心得到菌体，烘干后过筛得到菌粉；用乙酸乙酯浸泡，乙酸乙酯相需用(NH_4)_2SO_4溶液和草酸溶液洗涤两次；乙酸乙酯相经薄膜浓缩得到浆状物，于4℃结晶，得到粗晶体；再经粉末活性炭脱色和重结晶后得白色针状结晶，为lovastatin的纯品。

It goes back to what I told you...

现在回到我告诉过你的。。。

With a supporter in Mr Charest and an admirer in Mr Dumont, Mr Harper may be encouraged to call an election himself.

由于在沙雷那边有个支持者，杜蒙那边有个崇拜者，鼓励哈珀为自己举行一次选举。