必须

Penetration of fire protection bulkheads or decks of steel structures shall be protected by pipes, cable glands or coaming stuffed with fire resistant compound or MCT according to the fire protection class and number of cables.

由于消防甲板的渗透和金属甲板的结构电缆必须用管路保护，电缆轴封，舱口栏板必须用耐火性材料堵住，或 MCT 依据防火类别和电缆的型号来进行保护。

Study discussant William Wijns, MD, codirector of the Cardiovascular Center at OLV Ziekenhuis in Aalst, Belgium, cautioned colleagues not to abandon thrombolytics altogether."While PCI is the treatment of choice, reperfusion therapy using lytic agents is indicated when PCI is not available. This has not been jeopardized," he said.

参与研究讨论的比利时阿斯特城列肯赫斯区心血管疾病研究中心副主任William Wijns医学博士警告同业，不要断然放弃溶解血栓剂的使用；他表示，必须使用PCI却无法即时获取此项疗法时，就必须要使用溶血剂作再灌注治疗，这种治疗方式本身不曾造成危害。

He provided a five-pronged test to shore up the ruling: the belief must be genuinely held; it must be held for a long period of time; it must relate to something of grave importance to humanity; it must reach a certain level of cogency and seriousness; and it must not trample on existing ideas of human rights.

其提供了五个方面的测试来支持其法案：信仰必须受到真正的支持；其需要持久的支持；需要将其与一些重要的人性相联系；其必须到达到一定程度的说服力和严肃性；并且其不能践踏人权。

1 "Great minds must be ready not only to take the opportunity, but to make them." Colton, a great writer once remarked.

伟大的作家科尔顿曾经说过："一个伟大的人物不仅必须随时抓住机会，而且必须随时创造机会。"

If we would have our obscure fears come into the open and dissolve, the conscious mind must be somewhat still, not everlastingly occupied; then, as these fears come to the surface, they must be observed without let or hindrance, for any form of condemnation or justification only strengthens fear.

如果我们要使潜藏的恐惧显露出来，获得解决，那么人的意识部分必须稍微缓和下来，不可持续不断地繁忙。当这些恐惧浮上表面时，必须毫无阻碍地对它们加以观察，因为任何形式的责难或辩解都只会增强恐惧。

Professor Tian:This textbook possesses a new challenge to teachers of English in primary schools, because if they teach language communicatively, the teacher should be able to listen, to speak, to read and to write.

田教授：这套教材对小学英语教师提出了新的挑战，如果要进行互动式的教学，教师必须具有听、说、读、写各方面的能力，他们的语言能力和语言学知识必须得到提高。

In life , you have to compete, you have to come to play everyday.

在生活中，你必须要竞争，你必须要每天都全力以赴。

No. You are required to have a deep knowledge of pointers and compilers to be able to understand his code.

不可以，你必须有一个指针，深入了解编译器必须能够理解他的代码。

After coming to a complete stop at an intersection where there is a stop sign or flashing red signal. If there is no stop line, stop before the crosswalk.

在到达一个有"停止标记"或者红灯在闪烁的交叉路口必须完全停下来，如果没有停止线，则必须在人行横道前停下。

The motion transformation is not necessary coplanar, nor must it be concentric.

运动的变换不是必须共面的，也不必须是同心的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。