查询词典 not necessary

Based on the purpose, it is not necessary to coat nano-CaCO〓 surface thoroughly with surface modifier; it only need passivate some activity point on nano-CaCO〓 surface.

为纳米碳酸钙的表面处理提供理论指导

The position of the American Academy of Pediatrics is that "universal vaccination is not necessary."

美国儿科联合会的立场是："全面的接种是没有必要的。"

It is not necessary to place a peg in any potential bridge location i.e..

这是没有必要设立一个挂在任何地点，即潜在的桥梁。

"The government's position is that the existing provisions in our penal code against homosexuality are strong enough and that this new bill is not necessary," he told AFP news agency.

"政府的立场是，在我们对同性恋的刑法现有的条款得到足够强大，而这个新的法案没有必要，"他告诉法新社。

It is not necessary to perform laboratory tests of renal function before administering them.

在使用前不必进行肾功能的实验室检查。

A space maintainer is usually not necessary if there is a sufficient amount of space present to allow for eruption of permanent tooth/teeth.

如果替代的永久恒牙空间足够，则不需间隙保持器的制作

The second is the change of his style. The previous figures just pay attention to size and shape, which might reflects Deng Jianjin's pursuit of professional identity in his sub-consciousness. Along with the art trend of pop and pictorialization, this pursuit is not necessary, or his achievement no longer depends on this identity, so the pursuit of self-image turned into the self-expression of form.

其二是风格的变化，以前的人物表现讲究体积与塑造，这可能反映了邓箭今在潜意识中对专业身份的追求，随着艺术的波普化与图像化，这种追求已不必要，或者说他的成就已不取决于这种身份，于是形象的自我追寻变成形式上的自我表现。

After each serial measurement, it is not necessary to change the relative position of the two pitch circle devices, so the process of mutual check is simplified and the measuring time is shortened.

针对此缺点，本文提出采用排列常角法实现正多面棱体和多齿分度台角分度误差的互检，不需要在每个测回完成后改变两个圆分度器件的相对位置，从而简化了互检过程，缩短了测量时间。

But the essential point about an equation is that it is not necessary in order to show that the two expressions connected by the sign of equality have the same meaning, since this can be seen from the two expressions themselves.

但对于等式来说，具有根本意义的一点是：为了显示用等号连接的两个表达式有相同的指谓，等式并非必要，因为这一点从两个表达式本身即可以看出来。

I think it's not necessary to be that polite to her.

我认为你没有必要对她那么客气。

Turn-button rigid clutch, cam band brake, and collapsed with a pressure type overload device.

转键式刚性离合器，凸轮带式制动器，并带有压塌式超载保险装置。

Study on culture of osteoblasts from neonatal rat's calvaria in simulated weightlessness.

利用回转器建立模拟失重环境下大鼠颅骨成骨细胞体外培养模型。