Objective To observe the effect of full thickness lamellar keratoplasty combined with PTK ( photo therapeutic keratectomy ) .目的探讨联合 PTK 的全厚植片深板层角膜移植术的疗效....
It was imperative that he act as naturally as possible.最重要的是他要做到尽可能自然。With football, it was just something that came naturally to me.说起踢足球，对我来说再容易不过。When things go wrong, all of us naturally feel disappointed and frustra...
He has found that smoke and toxic gases can be transported swiftly up through the atrium.他发现烟和毒害性气体可通过中庭迅速向上传播....a weapon which releases toxic nerve gas...释放神经毒气的武器There is a risk that toxic chemicals might be blasted i...
不要等待好事降临，你要向幸福进发。Do not wait for good things to happen to you. You need to walk towards happiness.如果皮肤发红、瘙痒或脱皮，要向医生咨询。If your skin becomes red, sore or very scaly, consult your doctor.无迹象表明向客户售出了不适用的保险。There is no sugges...
Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol.对甘油催化氢解制取1, 2- 丙二醇效果最好的是含铜的催化剂....