1. Muzzle water-sealing board of underwater gun can increase muzzle velocity of projectile, and thus improve load conditions of projectile in bore. 为提高火炮在水下发射的初速，水下炮炮口设有挡水板，发射时挡水板改变了膛内弹丸的受力状况。
2. Faults: Muzzle either too snipy or too coarse; muzzle too short or too long. 缺点（不合格）：长嘴或者看上去太粗糙；鼻口部过短或者过长。
3. Muzzle is blockier and stronger for the dog, but neither dog nor bitch would have a snipey head or muzzle. 口吻比较黑，公狗的口吻更结实些，不论公狗还是母狗，都不应该有粗鲁的头部和口吻。
4. A new method to measure gun muzzle smoke is adopt to investigate the influence of some gun propellant deterrents. 利用烟箱法枪口烟雾测试系统，研究了钝感剂种类和用量对枪口烟雾的影响。
5. Later on, this lady was satisfied to taste the baptism of the at one feed water gun, gun muzzle jet to of the blue color liquid make her understand… 要译的句子是： 随后，这位女士饱尝了一顿水枪的洗礼，枪口喷出来的蓝色液体让她明白…
