Thrombin is an enzyme that catalyzes the conversion of the soluble plasma protein fibrinogen to the insoluble protein fibrin . 凝血酶能催化可溶性血浆纤维蛋白转化为不溶性的纤维蛋白。
It is that energy conversion that is responsible for the violent impact against the earth that generates the seismic signal . 就是这种能量转换引起对地层的猛烈冲击，从而产生了地震信号。
The conversion of observed reflection time to a correct geometrical picture of the subsurface involves a number of steps . 将观察的反射波时间转换成正确的地下界面几何图形，需经过好些步骤。
With methyl methacrylate the particle diameter increases linearly with conversion indicating particle aggregation . 采用甲基丙烯酸甲酯时，粒子直径随转化率呈直线增大，这就表明粒子发生了聚集。
Under normal conditions the contacting of solids by the bubble gas contributed significantly to the overall conversion of gas . 在正常条件下，气泡相体与固体颗粒的接触对气体的总转化率的影响很大。
The more serious bypassing in large units, if not countered, may cause a significant drop in conversion for such processes . 在较大型装置中气窜较为严重，如不加以考虑则会引起这类过程转化率显著下降。
All that was alone was to permit the conversion of a big fleet collier, the jupiter, into a carrier for experimental work . 要做的一切，只是为了进行试验，同意把一艘大型舰队煤船“木星号”改装成航空母舰。
Conversion and selectivity of catalytic reactions as well as the deactivation rate of the catalyst itself is very temperature-sensitive . 催化反应的转化率和选择性以及催化剂本身的失活速率均对温度十分敏感。
Even in those quite rare cases where currency exchanges are unrestricted, conversion of income data between currencies is biased . 甚至在那些货币兑换不受限制的罕见情况下，收入数据在不同货币间进行换算，依然会有偏差。
The mention of easter reminds me that in my lourdes entry i started the topic of my abortive conversion to catholicism . 说起复活节，这倒使我想起我在卢尔德记下的那段日记，那时我只开了个头，讲到我的半途而废的改信天主教一事。
